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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 2233870089

Certificate GIA 2233870089

Diamond specifications and retailer prices

From £2,695 GBP
$3,611 USD
As of November 1, 2026
Save £2,734 GBP (50%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £5,429 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two 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 2233870089. Listed at 12 retailers as of November 1, 2026, with prices from £2,695 to £5,429, a £2,734 spread on the same certified stone. MOH London lists it at £5,429. 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle35.51°
OriginNatural
Grading LabGIA
CertificateGIA 2233870089
Dimensions7.60 × 5.86 × 4.06 mm
L/W Ratio1.30
Key to symbols
Crystal, Cloud, Needle
Top View
7.60 mm5.86 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2233870089
Side View
Table 65.0%CrownGirdle: MED-ETKPavilion 35.51°Culet: NoneDepth 69.3%

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: Nov 1
Current: £5,429 GBP|Low: £2,695 GBP|High: £6,426 GBP|Avg: £4,011 GBP|-14.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9£2,695 GBP
Retailer 11£2,881 GBP
Retailer 10£2,892 GBP
Retailer 2£3,325 GBP
Retailer 8£3,470 GBP
Retailer 6£3,687 GBP
Retailer 7£3,687 GBP
Retailer 5£3,814 GBP
Retailer 4£3,848 GBP
Retailer 3£4,064 GBP
MOH London£5,429 GBP

43 data points across 11 retailers

12 retailers£2,695 GBP to £5,429 GBP

A
Cheapest Retailer
-
£2,695 GBP
$3,611 USD
A
Retailer 2
-
£2,881 GBP
$3,860 USD
View
Final sale: no returns
A
Retailer 3
-
£2,892 GBP
$3,875 USD
View
A
Retailer 4
-
£2,993 GBP
A$6,170 AUD
View
A
Retailer 5
-
£3,325 GBP
View
B+
Retailer 6
-
£3,470 GBP
$4,650 USD
View
B+
Retailer 7
-
£3,687 GBP
$4,940 USD
View
B+
Retailer 8
-
£3,687 GBP
$4,940 USD
View
B+
Retailer 9
-
£3,814 GBP
$5,110 USD
View
B+
Retailer 10
-
£3,848 GBP
€4,910 EUR
View
B+
Retailer 11
-
£4,064 GBP
A$8,378 AUD
View
Most Expensive
B
MOH London
8B5F20B67 · Nov 1
£5,429 GBP
View
11 more retailers have this diamond
Prices start from £2,695 GBPSave up to £2,734 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
1.51ct Cushion
£2,695 GBP