AppraisalValuation
A professional estimate of a diamond’s monetary value, often for insurance or resale.
Not the same as Rapaport Pricing, which sets wholesale benchmarks.
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OTC Rap Discounts on Pre-Owned Goods | Rochester Findings
Weekly Diamond Drops — Built for Jewelers
Always under market, twice a week. Stock your showcases with pre-owned natural diamonds at wholesale pricing. Trusted by 1,000+ jewelers nationwide.
Why Jewelers Trust Us
Always Under Market
Buy pre-owned natural diamonds priced to move — margins designed for resale.
Consistent Supply
Fresh inventory every Tuesday & Thursday at 4:00 PM EST.
Transparent Fees
No hidden markups or gimmicks — just straightforward wholesale pricing.
Trusted by Jewelers
From independents to multi-store operations, stores rely on our drops weekly.
Testimonials
“We stock several stones every month through Rochester Findings’ drops. The margins have been excellent and our customers love the variety.”
“It’s like having a private pipeline of under-market diamonds twice a week. We plan our buying around these drops.”
FAQs
Do I need to register?
No — just shop the drop at launch, information will be required at check-out.
What if I need a specific stone?
We can consign or source on request — reach out directly.
Bezel FacetAnatomy
The kite-shaped facets on the Crown, extending from the
Table edge to the Girdle.
Works with Star Facets and
Upper-Girdle Facets to control brilliance.
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BrillianceOptical
The return of white light from a diamond, giving it brightness. Strongly influenced by
Cut, Symmetry, and
Polish. Related to Scintillation.
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Brilliant Cut DiamondCut
A cut style with 57 or 58 facets designed to maximize Brilliance
and fire. The most common example is the Round Brilliant.
Contrasts with Step Cuts such as the
Emerald Cut.
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CaratWeight
A unit of weight equal to 0.20 grams. Larger carat weights command higher prices,
but value also depends on Cut,
Color Grading, and
Clarity.
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CavityClarity
A surface-reaching inclusion or hole. Reduces durability and
Clarity grade. Can be worsened by
Fracture Filling attempts.
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ClarityGrading
A diamond’s freedom from inclusions and blemishes. Trade terms include
Eye Clean and Loupe Clean.
Related issues: Clouds, Crystals,
Feathers, and Cavities.
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Clarity EnhancementTreatment
Processes such as Fracture Filling or
Laser Drilling used to make inclusions less visible.
While improving appearance, they lower natural value and should be disclosed.
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CleavageDurability
Natural planes in a diamond’s crystal structure where it can split.
Affects Durability and is a concern for cutting and setting.
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CloudClarity
A cluster of tiny inclusions that creates a hazy appearance.
Can reduce Transparency,
lower Brilliance, and impact Clarity grade.
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Color GradingGrading
Evaluation of body color, typically on the GIA D–Z scale. Trade terms include
TLB and No BGM.
Related to Fluorescence.
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CrownAnatomy
The portion of a diamond above the Girdle, including the
Table and Bezel Facets.
Its proportions affect Brilliance and fire.
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Crown AngleCut
The angle between the Girdle plane and the
Bezel Facets. Influences
Brilliance and fire when balanced with
Pavilion Angle.
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Crown Height PercentageCut
The crown height expressed as a percentage of the diamond’s average diameter.
Works with Table Percentage and
Depth Percentage to define proportions.
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CrystalClarity
An inclusion where another mineral crystal is trapped inside the diamond during formation.
May affect Clarity grade and transparency.
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CuletAnatomy
The small facet (or point) at the very bottom of a diamond.
A large culet may appear as a hole when viewed Face-Up.
Considered in Cut grading.
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Cushion CutFancy Shape
A square or rectangular cut with rounded corners, blending
Brilliance with a softer outline.
Related to Fancy Shapes.
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CutGrading
How well a diamond is proportioned and finished. Directly affects
Brilliance, Fire, and
Scintillation.
Related terms: Ideal Cut, Symmetry.
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DepthCut
The total height of a diamond from Table to
Culet, measured in millimeters.
Evaluated with Depth Percentage.
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Depth PercentageCut
The ratio of a diamond’s Depth to its average diameter.
Balanced with Table Percentage for ideal Cut proportions.
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DurabilityProperty
A diamond’s ability to resist damage. Impacted by cut quality, inclusions, and structural features such as Cleavage.
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Emerald CutStep Cut
A rectangular cut with cropped corners and long step facets. Emphasizes clarity and luster over brilliance.
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Eye CleanClarity
No inclusions visible to the naked eye at normal viewing distance and lighting.
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FacetAnatomy
A flat polished surface on a diamond. The arrangement and precision of facets determine brilliance and fire.
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Fancy ColorColor
Diamonds with strong, distinct colors outside the normal D–Z range, such as yellow, pink, or blue. Highly valued for rarity.
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Fancy ShapeCut
Any diamond shape other than Round Brilliant, including Oval, Pear, Marquise, Cushion, Princess, and Emerald cuts.
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FeatherClarity
An internal fracture that looks feather-like. Can impact durability depending on size and location.
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FluorescenceOptical
A visible glow (often blue) under ultraviolet light. Can improve color appearance in some stones, or cause haziness in strong cases.
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FractureClarity
A break within a diamond that is not along cleavage planes. Usually irregular in shape and can affect durability.
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Fracture FillingTreatment
A clarity enhancement where glass-like material is injected into fractures to make them less visible. Considered temporary and lowers resale value.
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GirdleAnatomy
The thin perimeter dividing the crown and pavilion. Can be faceted, polished, or bruted. Thickness affects durability and cut grade.
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Girdle ThicknessCut
The relative measurement of a diamond’s girdle from “extremely thin” to “extremely thick.” Impacts both durability and weight retention.
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GIA (Gemological Institute of America)Lab
The most respected diamond grading laboratory worldwide. Known for setting the standard in
Clarity, Color, Cut, and
Carat grading. A GIA report greatly increases buyer trust and resale value.
Many diamonds also carry a Laser Inscription of their GIA certificate number.
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Hearts & Arrows (Pattern)Cut Precision
A symmetrical pattern visible in some well-cut round brilliants. Hearts appear when viewed from the pavilion, arrows from the crown.
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HazyTransparency
Slight veil or lack of crispness. Less severe than Milky but still reduces brilliance and life.
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Ideal CutCut
A diamond cut with precise proportions and symmetry to maximize brilliance, fire, and scintillation. Often associated with premium pricing.
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IGILab
International Gemological Institute. A grading lab known for diamond and gemstone certifications, often compared with GIA.
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InclusionClarity
An internal feature within a diamond, such as crystals, feathers, or clouds. Impacts clarity grade and value.
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KaratMetal
A unit that measures gold purity. 24K = pure gold, 18K = 75% gold, alloyed with other metals for strength. Not to be confused with Carat weight.
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Laser DrillingTreatment
A clarity enhancement using a laser to reach and remove or bleach inclusions. Usually disclosed; lowers natural value.
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Laser Drill HoleClarity
A tiny tunnel created during Laser Drilling. Visible under magnification and considered a clarity feature.
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Laser InscriptionIdentification
Microscopic text or numbers inscribed on a diamond’s girdle, usually with a grading report number for identification.
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Length-To-Width RatioCut
The proportion of a fancy-shaped diamond’s length divided by width. Impacts outline appeal, especially for Oval, Marquise, and Pear cuts.
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LoupeTool
A 10× magnification tool used by jewelers and gemologists to grade clarity and craftsmanship.
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Lower-Girdle FacetAnatomy
Facets located between the pavilion main facets and the girdle. Their length influences scintillation and patterning.
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LusterOptical
The quality of light reflected from a polished diamond surface. High-quality diamonds show a sharp, mirror-like luster.
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Marquise CutFancy Shape
A football-shaped diamond with pointed ends. Maximizes face-up size for carat weight, often set to elongate the finger.
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Mine Cut DiamondAntique Cut
An early diamond cut (1800s) with a high crown, small table, and open culet. Precursor to the Old European cut.
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Mohs ScaleDurability
A scale of mineral hardness from 1 (talc) to 10 (diamond). Diamond is the hardest natural material known.
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NaturalClarity
A portion of the rough diamond’s surface left unpolished, often seen at the girdle. Considered a clarity characteristic.
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No BGMColor/Transparency
Short for No Brown, Green, or Milky.
A desirable trade shorthand meaning the diamond has no
Top Light Brown hue, no green tint,
and no Milky or hazy cast.
Often used as a selling point in Color Grading.
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Old European CutAntique Cut
A diamond cut popular in the late 1800s to early 1900s. Features a round outline, small table, steep crown, and open culet. Precursor to the modern Round Brilliant.
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Optical PropertyOptics
A characteristic of how a diamond interacts with light, including brilliance, dispersion, scintillation, and birefringence.
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Optic AxisOptics
In gemology, the direction in a crystal where light is not doubly refracted. Diamonds are singly refractive, so this concept applies more to colored stones.
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Optic CharacterOptics
Describes whether a gemstone is singly or doubly refractive. Diamonds are singly refractive, which helps distinguish them from simulants.
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Optic SignOptics
For doubly refractive gems, describes whether they are optically positive or negative. Diamonds, being singly refractive, do not have an optic sign.
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PavéSetting
A jewelry setting style where small diamonds are set closely together with minimal metal showing, creating a continuous sparkle.
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PavilionAnatomy
The lower portion of a diamond, from the girdle to the culet. Depth and angles here strongly influence brilliance.
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Pavilion AngleCut
The angle between the pavilion main facets and the girdle plane. Ideal ranges maximize light return.
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Pavilion Main FacetAnatomy
The large facets on the pavilion that extend from the girdle to the culet. Their precision is crucial for brilliance.
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PearFancy Shape
Also called a teardrop cut, it blends a round and marquise shape. Popular for pendants and rings, often elongates the finger.
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PinpointClarity
A very small crystal inclusion visible under magnification. Alone, minor; in clusters, may form a cloud.
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PointsWeight
Units of diamond weight. 100 points = 1 carat. Example: a 0.25 ct diamond = 25 points.
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PolishFinish
The quality of the diamond’s surface finish from cutting. Graded from Excellent to Poor. Impacts light return and value.
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PrincessFancy Shape
A square or rectangular brilliant cut. Known for its sharp corners and strong brilliance. Very popular for engagement rings.
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Refractive IndexOptics
A measure of how much light bends as it enters the diamond. Diamond’s RI is 2.42, giving it exceptional brilliance.
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Rap / Rap SheetPricing
The Rapaport Price List used as a wholesale benchmark.
Actual OTC trades occur at Rap Discounts
(e.g., “–25% off Rap”). Important reference in diamond
Appraisals and dealer negotiations.
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ScintillationOptics
The sparkle effect seen when a diamond or the light source moves. It’s the contrast of light and dark reflections.
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ShapeStyle
The outline of the diamond (e.g., Round, Oval, Princess, Cushion, Emerald). Shape is distinct from cut quality.
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Star FacetAnatomy
Small triangular facets that extend from the table edge toward the bezel facets on a brilliant cut diamond.
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Specific GravityPhysical Property
The density of a gemstone compared to water. Diamond’s specific gravity is 3.52, helping distinguish it from imitations.
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Step CutCut
A cutting style featuring long, narrow facets arranged in steps (e.g., Emerald and Asscher cuts). Emphasizes clarity over brilliance.
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SymmetryGrading
The precision of a diamond’s cut and facet alignment. Graded from Excellent to Poor. Strongly influences overall cut grade.
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Strong Blue (Fluorescence)Fluorescence
Noticeable blue reaction under UV. Can help some colors; can look oily/milky in others; usually discounted.
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TableAnatomy
The large flat facet on the crown. It allows light into the diamond and is a key factor in brilliance.
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Table PercentageCut
The table width expressed as a percentage of the diamond’s average diameter. Balanced ratios enhance brilliance.
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TLB (Top Light Brown)Appearance
Subtle brown tint in near-colorless ranges; lowers face-up value vs. equivalent white stones.
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Upper-Girdle FacetAnatomy
Facets located between the bezel facets and the girdle plane on a brilliant cut. They help control light leakage and scintillation.
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