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Cushion|Natural|GIA

1.20ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 1558540246

Certificate GIA 1558540246

Diamond specifications and retailer prices

From £1,968 GBP
HK$20,600 HKD
As of November 1, 2026
Save £2,757 GBP (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,725 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-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 1558540246. Listed at 14 retailers as of October 28, 2026, with prices from £1,968 to £4,725, a £2,757 spread on the same certified stone. Queensmith lists it at £4,725. 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

1.20
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558540246
Dimensions7.15 × 5.48 × 3.74 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Indented Natural, Needle, Natural
Top View
7.15 mm5.48 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558540246
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.1%

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: £4,725 GBP|Low: £1,949 GBP|High: £4,829 GBP|Avg: £2,920 GBP|+0.4%
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£1,968 GBP
Retailer 2£2,061 GBP
Retailer 4£2,393 GBP
Retailer 11£2,406 GBP
Retailer 5£2,578 GBP
Retailer 10£2,715 GBP
Retailer 7£2,725 GBP
Retailer 3£2,734 GBP
Retailer 12£2,797 GBP
Retailer 9£3,053 GBP
Retailer 6£4,360 GBP
Queensmith£4,725 GBP

23 data points across 12 retailers

14 retailers£1,968 GBP to £4,725 GBP

A
Cheapest Retailer
-
£1,968 GBP
HK$20,600 HKD
A
Retailer 2
-
£2,061 GBP
₹262,948 INR
View
B+
Retailer 3
-
£2,393 GBP
SGD 4,333 SGD
View
B+
Retailer 4
-
£2,406 GBP
$3,224 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,532 GBP
$3,393 USD
View
B+
Retailer 6
-
£2,578 GBP
View
B+
Retailer 7
-
£2,715 GBP
$3,638 USD
View
B+
Retailer 8
-
£2,725 GBP
View
B+
Retailer 9
-
£2,734 GBP
SGD 4,951 SGD
View
B+
Retailer 10
-
£2,769 GBP
A$5,708 AUD
View
B+
Retailer 11
-
£2,797 GBP
$3,748 USD
View
B+
Retailer 12
-
£3,053 GBP
€3,896 EUR
View
B
Retailer 13
-
£4,360 GBP
View
Most Expensive
B
Queensmith
1558540246 · Oct 28
£4,725 GBP
View
13 more retailers have this diamond
Prices start from £1,968 GBPSave up to £2,757 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
1.20ct Cushion
£1,968 GBP