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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 2556361261

Certificate GIA 2556361261

Diamond specifications and retailer prices

From £3,267 GBP
HK$34,200 HKD
As of October 30, 2026
Save £3,861 GBP (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,128 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct 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 2556361261. Listed at 16 retailers as of October 28, 2026, with prices from £3,267 to £7,128, a £3,861 spread on the same certified stone. Queensmith lists it at £7,128. 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

1.50
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556361261
Dimensions7.62 × 5.86 × 4.03 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural, Natural
Top View
7.62 mm5.86 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556361261
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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: Oct 30
Current: £7,128 GBP|Low: £3,267 GBP|High: £7,180 GBP|Avg: £4,674 GBP|+2.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 11£3,267 GBP
Retailer 2£3,527 GBP
Retailer 3£3,859 GBP
Retailer 5£3,878 GBP
Retailer 13£4,054 GBP
Retailer 6£4,151 GBP
Retailer 7£4,284 GBP
Retailer 10£4,392 GBP
Retailer 4£4,509 GBP
Retailer 12£4,603 GBP
Retailer 9£4,792 GBP
Retailer 8£6,506 GBP
Queensmith£7,128 GBP

28 data points across 13 retailers

16 retailers£3,267 GBP to £7,128 GBP

A
Cheapest Retailer
-
£3,267 GBP
HK$34,200 HKD
A
Retailer 2
-
£3,527 GBP
₹450,066 INR
View
Retailer 3
-
£3,779 GBP
SGD 6,843 SGD
View
Price last confirmed 13 days ago
A
Retailer 4
-
£3,859 GBP
$5,170 USD
View
A
Retailer 5
-
£3,878 GBP
SGD 7,022 SGD
View
A
Retailer 6
-
£4,032 GBP
$5,403 USD
View
A
Retailer 7
-
£4,054 GBP
$5,432 USD
View
Final sale: no returns
A
Retailer 8
-
£4,151 GBP
View
A
Retailer 9
-
£4,284 GBP
View
A
Retailer 10
-
£4,392 GBP
$5,885 USD
View
B+
Retailer 11
-
£4,501 GBP
A$9,278 AUD
View
B+
Retailer 12
-
£4,509 GBP
$6,041 USD
View
B+
Retailer 13
-
£4,603 GBP
$6,168 USD
View
B+
Retailer 14
-
£4,792 GBP
€6,115 EUR
View
B+
Retailer 15
-
£6,506 GBP
View
Most Expensive
B
Queensmith
2556361261 · Oct 28
£7,128 GBP
View
15 more retailers have this diamond
Prices start from £3,267 GBPSave up to £3,861 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
1.50ct Cushion
£3,267 GBP