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Cushion|Natural|GIA

2.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1545932950

Certificate GIA 1545932950

Diamond specifications and retailer prices

From $19,655 USD
As of November 2, 2026
Save $8,832 USD (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $28,487 USD at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545932950. Listed at 5 retailers as of November 1, 2026, with prices from $19,655 to $28,487, a $8,832 spread on the same certified stone. MOH London lists it at $28,487. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle39.97°
Pavilion angle30.49°
OriginNatural
Grading LabGIA
CertificateGIA 1545932950
Dimensions8.84 × 6.81 × 4.67 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Needle
Top View
8.84 mm6.81 mm2.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1545932950
Side View
Table 65.0%Crown 39.97°GirdlePavilion 30.49°CuletDepth 68.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $28,487 USD|Low: $12,148 USD|High: $29,494 USD|Avg: $21,045 USD|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8$12,148 USD
Retailer 5$19,397 USD
Retailer 4$19,655 USD
Retailer 2$20,118 USD
Retailer 3$20,968 USD
Retailer 7$22,738 USD
Retailer 6$22,858 USD
MOH London$28,487 USD

36 data points across 8 retailers

5 retailers$19,655 USD to $28,487 USD

Retailer 1
-
$19,397 USD
A$29,841 AUD
Price last confirmed 29 days ago
A
Retailer 2
-
$19,655 USD
View
A
Retailer 3
-
$20,118 USD
£15,841 GBP
View
A
Retailer 4
-
$20,968 USD
View
Most Expensive
B
MOH London
11D257389 · Nov 1
$28,487 USD
£22,431 GBP
View
4 more retailers have this diamond
Prices start from $19,655 USDSave up to $8,832 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.51ct Cushion
$19,655 USD