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Cushion|Natural|GIA

2.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1353717609

Certificate GIA 1353717609

Diamond specifications and retailer prices

From £9,766 GBP
₹1,246,244 INR
As of October 27, 2026
Save £6,522 GBP (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £16,289 GBP 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 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 1353717609. Listed at 7 retailers as of October 27, 2026, with prices from £9,766 to £16,289, a £6,522 spread on the same certified stone. MOH London lists it at £16,289. 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
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1353717609
Dimensions7.98 × 7.28 × 5.00 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Top View
7.98 mm7.28 mm2.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1353717609
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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

Price History

Last verified: Oct 27
Current: £16,289 GBP|Low: £9,718 GBP|High: £16,485 GBP|Avg: £12,447 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4£9,766 GBP
Retailer 2£11,252 GBP
Retailer 5£11,497 GBP
Retailer 3£13,141 GBP
MOH London£16,289 GBP

46 data points across 5 retailers

7 retailers£9,766 GBP to £16,289 GBP

A
Cheapest Retailer
-
£9,766 GBP
₹1,246,244 INR
A
Retailer 2
-
£9,863 GBP
$13,215 USD
View
A
Retailer 3
-
£9,934 GBP
A$20,477 AUD
View
A
Retailer 4
-
£11,252 GBP
View
A
Retailer 5
-
£11,497 GBP
$15,405 USD
View
B+
Retailer 6
-
£13,141 GBP
€16,769 EUR
View
Most Expensive
B+
MOH London
2558BCE32 · Nov 1
£16,289 GBP
View
6 more retailers have this diamond
Prices start from £9,766 GBPSave up to £6,522 GBP

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
£9,766 GBP