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Cushion|Natural|GIA

1.20ct D SI2 Cushion Natural Diamond

ID • D/SI2 • GIA 1559572833

Certificate GIA 1559572833

Diamond specifications and retailer prices

From £1,519 GBP
HK$15,900 HKD
As of November 1, 2026
Save £2,723 GBP (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,242 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 1559572833. Listed at 13 retailers as of October 28, 2026, with prices from £1,519 to £4,242, a £2,723 spread on the same certified stone. Queensmith lists it at £4,242. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559572833
Dimensions6.96 × 5.34 × 3.61 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Indented Natural, Pinpoint, Natural
Top View
6.96 mm5.34 mm1.20 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1559572833
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.5%

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: £4,242 GBP|Low: £1,509 GBP|High: £4,322 GBP|Avg: £2,448 GBP|+1.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6£1,519 GBP
Retailer 2£1,604 GBP
Retailer 11£1,829 GBP
Retailer 9£1,863 GBP
Retailer 3£2,095 GBP
Retailer 8£2,124 GBP
Retailer 5£2,158 GBP
Retailer 10£2,194 GBP
Retailer 7£2,521 GBP
Retailer 4£3,536 GBP
Queensmith£4,242 GBP

32 data points across 11 retailers

13 retailers£1,519 GBP to £4,242 GBP

A
Cheapest Retailer
-
£1,519 GBP
HK$15,900 HKD
A
Retailer 2
-
£1,604 GBP
₹204,642 INR
View
A
Retailer 3
-
£1,829 GBP
SGD 3,311 SGD
View
A
Retailer 4
-
£1,863 GBP
$2,496 USD
View
Final sale: no returns
A
Retailer 5
-
£1,952 GBP
$2,615 USD
View
Retailer 6
-
£2,095 GBP
$2,807 USD
View
Price last confirmed 16 days ago
B+
Retailer 7
-
£2,124 GBP
A$4,378 AUD
View
B+
Retailer 8
-
£2,124 GBP
$2,846 USD
View
B+
Retailer 9
-
£2,158 GBP
View
B+
Retailer 10
-
£2,194 GBP
$2,940 USD
View
B+
Retailer 11
-
£2,521 GBP
€3,217 EUR
View
B
Retailer 12
-
£3,536 GBP
View
Most Expensive
B
Queensmith
1559572833 · Oct 28
£4,242 GBP
View
12 more retailers have this diamond
Prices start from £1,519 GBPSave up to £2,723 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
£1,519 GBP