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Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 2547868500

Certificate GIA 2547868500

Diamond specifications and retailer prices

From £3,191 GBP
HK$33,400 HKD
As of November 1, 2026
Save £3,790 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,981 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547868500. Listed at 15 retailers as of October 28, 2026, with prices from £3,191 to £6,981, a £3,790 spread on the same certified stone. Queensmith lists it at £6,981. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2547868500
Dimensions7.99 × 5.79 × 3.91 mm
L/W Ratio1.38
Top View
7.99 mm5.79 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547868500
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.6%

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: £6,981 GBP|Low: £3,162 GBP|High: £7,033 GBP|Avg: £4,564 GBP|+1.6%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8£3,191 GBP
Retailer 2£3,408 GBP
Retailer 4£3,758 GBP
Retailer 12£3,887 GBP
Retailer 5£3,969 GBP
Retailer 7£4,109 GBP
Retailer 10£4,212 GBP
Retailer 3£4,327 GBP
Retailer 11£4,422 GBP
Retailer 9£4,766 GBP
Retailer 6£6,708 GBP
Queensmith£6,981 GBP

25 data points across 12 retailers

15 retailers£3,191 GBP to £6,981 GBP

A
Cheapest Retailer
-
£3,191 GBP
HK$33,400 HKD
A
Retailer 2
-
£3,408 GBP
₹434,828 INR
View
A
Retailer 3
-
£3,758 GBP
SGD 6,804 SGD
View
A
Retailer 4
-
£3,887 GBP
$5,208 USD
View
Final sale: no returns
A
Retailer 5
-
£3,907 GBP
$5,235 USD
View
A
Retailer 6
-
£3,969 GBP
View
Retailer 7
-
£4,084 GBP
SGD 7,395 SGD
View
Price last confirmed 18 days ago
A
Retailer 8
-
£4,109 GBP
View
A
Retailer 9
-
£4,212 GBP
$5,643 USD
View
A
Retailer 10
-
£4,302 GBP
A$8,868 AUD
View
A
Retailer 11
-
£4,327 GBP
$5,798 USD
View
B+
Retailer 12
-
£4,422 GBP
$5,925 USD
View
B+
Retailer 13
-
£4,766 GBP
€6,082 EUR
View
B+
Retailer 14
-
£6,708 GBP
View
Most Expensive
B
Queensmith
2547868500 · Oct 28
£6,981 GBP
View
14 more retailers have this diamond
Prices start from £3,191 GBPSave up to £3,790 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
£3,191 GBP