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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 5563268455

Certificate GIA 5563268455

Diamond specifications and retailer prices

From £1,939 GBP
$2,599 USD
As of October 31, 2026
Save £1,681 GBP (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,620 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563268455. Listed at 13 retailers as of October 26, 2026, with prices from £1,939 to £3,620, a £1,681 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,620. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563268455
Dimensions7.33 × 5.87 × 4.07 mm
L/W Ratio1.25
Culet sizeNone
Top View
7.33 mm5.87 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563268455
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.4%

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 31
Current: £3,027 GBP|Low: £1,939 GBP|High: £3,903 GBP|Avg: £2,575 GBP|-10.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 1, 2026
Retailer 7£1,939 GBP
Retailer 10£1,976 GBP
Retailer 8£2,109 GBP
Retailer 6£2,127 GBP
Retailer 5£2,269 GBP
Retailer 2£2,336 GBP
Retailer 3£2,387 GBP
Retailer 11£2,502 GBP
Retailer 9£2,515 GBP
Retailer 12£2,573 GBP
Retailer 4£2,635 GBP
Retailer 1£3,027 GBP
Wholesale Diamonds Direct£3,620 GBP

29 data points across 13 retailers

13 retailers£1,939 GBP to £3,620 GBP

A
Cheapest Retailer
-
£1,939 GBP
$2,599 USD
A
Retailer 2
-
£1,976 GBP
SGD 3,577 SGD
View
A
Retailer 3
-
£2,109 GBP
$2,826 USD
View
A
Retailer 4
-
£2,127 GBP
$2,850 USD
View
A
Retailer 5
-
£2,269 GBP
View
A
Retailer 6
-
£2,336 GBP
SGD 4,230 SGD
View
A
Retailer 7
-
£2,387 GBP
$3,198 USD
View
A
Retailer 8
-
£2,502 GBP
$3,352 USD
View
A
Retailer 9
-
£2,515 GBP
$3,370 USD
View
A
Retailer 10
-
£2,573 GBP
$3,448 USD
View
Retailer 11
-
£2,635 GBP
€3,363 EUR
View
Price last confirmed 8 days ago
A
Retailer 12
-
£3,027 GBP
$4,056 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
378293703 · Oct 26
£3,620 GBP
$4,851 USD
View
12 more retailers have this diamond
Prices start from £1,939 GBPSave up to £1,681 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
£1,939 GBP