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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

GD • G/SI2 • GIA 2557551287

Certificate GIA 2557551287

Diamond specifications and retailer prices

From £2,486 GBP
As of November 6, 2026
Save £2,733 GBP (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,220 GBP at MOH London · As of November 4, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557551287. Listed at 13 retailers as of November 4, 2026, with prices from £2,486 to £5,220, a £2,733 spread on the same certified stone. MOH London lists it at £5,220. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2557551287
Dimensions7.84 × 5.82 × 3.93 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
7.84 mm5.82 mm1.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2557551287
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: 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: Nov 6
Current: £5,220 GBP|Low: £2,486 GBP|High: £5,327 GBP|Avg: £3,367 GBP|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£2,486 GBP
Retailer 2£2,620 GBP
Retailer 8£2,915 GBP
Retailer 3£3,033 GBP
Retailer 6£3,129 GBP
Retailer 4£3,166 GBP
Retailer 10£3,286 GBP
Retailer 7£3,308 GBP
Retailer 11£3,489 GBP
Retailer 5£3,697 GBP
MOH London£5,220 GBP

27 data points across 11 retailers

13 retailers£2,486 GBP to £5,220 GBP

A
Cheapest Retailer
-
£2,486 GBP
A
Retailer 2
-
£2,620 GBP
View
B+
Retailer 3
-
£2,915 GBP
View
B+
Retailer 4
-
£3,014 GBP
View
B+
Retailer 5
-
£3,033 GBP
View
Final sale: no returns
B+
Retailer 6
-
£3,129 GBP
View
B+
Retailer 7
-
£3,166 GBP
View
Retailer 8
-
£3,286 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£3,306 GBP
View
B+
Retailer 10
-
£3,308 GBP
View
B+
Retailer 11
-
£3,489 GBP
View
B+
Retailer 12
-
£3,697 GBP
View
Most Expensive
B
MOH London
A6A7620C1 · Nov 4
£5,220 GBP
View
12 more retailers have this diamond
Prices start from £2,486 GBPSave up to £2,733 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
£2,486 GBP