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Cushion|Natural|GIA

2.50ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1288699504

Certificate GIA 1288699504

Diamond specifications and retailer prices

From £7,482 GBP
$10,025 USD
As of October 28, 2026
Save £5,287 GBP (41%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £12,769 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural cushion diamond

This 2.5ct 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 1288699504. Listed at 10 retailers as of October 28, 2026, with prices from £7,482 to £12,769, a £5,287 spread on the same certified stone. MOH London lists it at £12,769. 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

2.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1288699504
Dimensions7.64 × 7.39 × 4.99 mm
L/W Ratio1.03
Top View
7.64 mm7.39 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1288699504
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.5%

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 28
Current: £12,769 GBP|Low: £7,482 GBP|High: £12,854 GBP|Avg: £9,372 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5£7,482 GBP
Retailer 4£7,545 GBP
Retailer 8£7,617 GBP
Retailer 6£8,133 GBP
Retailer 3£8,792 GBP
Retailer 7£9,270 GBP
Retailer 2£10,248 GBP
Retailer 9£10,698 GBP
Retailer 10£10,911 GBP
MOH London£12,769 GBP

28 data points across 10 retailers

10 retailers£7,482 GBP to £12,769 GBP

A
Cheapest Retailer
-
£7,482 GBP
$10,025 USD
A
Retailer 2
-
£7,545 GBP
$10,110 USD
View
A
Retailer 3
-
£7,617 GBP
$10,206 USD
View
Retailer 4
-
£8,133 GBP
$10,897 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£8,792 GBP
View
A
Retailer 6
-
£9,270 GBP
$12,421 USD
View
A
Retailer 7
-
£9,755 GBP
$13,070 USD
View
A
Retailer 8
-
£10,248 GBP
€13,077 EUR
View
Retailer 9
-
£10,698 GBP
$14,334 USD
View
Price last confirmed 16 days ago
Most Expensive
A
MOH London
A4FB21BDB · Oct 29
£12,769 GBP
View
9 more retailers have this diamond
Prices start from £7,482 GBPSave up to £5,287 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
2.50ct Cushion
£7,482 GBP