Cushion|Natural|GIA

2.51ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 6565458704

Certificate GIA 6565458704

Diamond specifications and retailer prices

From $17,215 USD
As of October 28, 2026
Save $12,963 USD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $30,178 USD at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565458704. Listed at 9 retailers as of October 28, 2026, with prices from $17,215 to $30,178, a $12,963 spread on the same certified stone. MOH London lists it at $30,178. 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
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565458704
Dimensions9.09 × 7.02 × 4.90 mm
L/W Ratio1.29
Top View
9.09 mm7.02 mm2.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565458704
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.9%

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: Oct 28
Current: $30,178 USD|Low: $16,450 USD|High: $30,178 USD|Avg: $20,630 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$16,450 USD
Retailer 4$17,215 USD
Retailer 5$17,640 USD
Retailer 7$18,049 USD
Retailer 2$19,795 USD
Retailer 6$21,633 USD
Retailer 8$22,383 USD
Retailer 3$23,321 USD
MOH London$30,178 USD

18 data points across 9 retailers

9 retailers$17,215 USD to $30,178 USD

Retailer 1
-
$16,450 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$17,215 USD
View
A
Retailer 3
-
$17,640 USD
View
B+
Retailer 4
-
$18,049 USD
CA$25,068 CAD
View
B+
Retailer 5
-
$19,795 USD
£15,586 GBP
View
B+
Retailer 6
-
$21,633 USD
View
B
Retailer 7
-
$22,383 USD
View
B
Retailer 8
-
$23,321 USD
€22,210 EUR
View
Most Expensive
B
MOH London
A53E81CB6 · Oct 29
$30,178 USD
£23,762 GBP
View
8 more retailers have this diamond
Prices start from $17,215 USDSave up to $12,963 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
$17,215 USD