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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

GD • H/SI2 • GIA 2556449404

Certificate GIA 2556449404

Diamond specifications and retailer prices

From £1,833 GBP
₹234,289 INR
As of November 2, 2026
Save £2,196 GBP (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,029 GBP at MOH London · As of November 2, 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 H 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 2556449404. Listed at 13 retailers as of November 2, 2026, with prices from £1,833 to £4,029, a £2,196 spread on the same certified stone. MOH London lists it at £4,029. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556449404
Dimensions7.39 × 5.93 × 4.01 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Knot, Crystal, Feather, Needle
Top View
7.39 mm5.93 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556449404
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.7%

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 2
Current: £4,029 GBP|Low: £1,830 GBP|High: £4,051 GBP|Avg: £2,427 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 2£1,833 GBP
Retailer 5£1,911 GBP
Retailer 4£2,139 GBP
Retailer 9£2,201 GBP
Retailer 13£2,293 GBP
Retailer 6£2,334 GBP
Retailer 10£2,409 GBP
Retailer 3£2,516 GBP
Retailer 8£2,518 GBP
Retailer 11£2,581 GBP
Retailer 7£2,651 GBP
Retailer 12£2,742 GBP
MOH London£4,029 GBP

27 data points across 13 retailers

13 retailers£1,833 GBP to £4,029 GBP

A
Cheapest Retailer
-
£1,833 GBP
₹234,289 INR
A
Retailer 2
-
£1,911 GBP
$2,564 USD
View
Final sale: no returns
B+
Retailer 3
-
£2,139 GBP
$2,871 USD
View
A
Retailer 4
-
£2,201 GBP
$2,953 USD
View
B+
Retailer 5
-
£2,293 GBP
$3,077 USD
View
A
Retailer 6
-
£2,334 GBP
View
B+
Retailer 7
-
£2,409 GBP
$3,233 USD
View
B+
Retailer 8
-
£2,516 GBP
$3,377 USD
View
B+
Retailer 9
-
£2,518 GBP
View
B+
Retailer 10
-
£2,581 GBP
$3,464 USD
View
B+
Retailer 11
-
£2,651 GBP
€3,388 EUR
View
B+
Retailer 12
-
£2,742 GBP
$3,680 USD
View
Most Expensive
B
MOH London
472CA7A49 · Nov 2
£4,029 GBP
View
12 more retailers have this diamond
Prices start from £1,833 GBPSave up to £2,196 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
£1,833 GBP