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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 $2,897 AUD
HK$15,900 HKD
As of November 1, 2026
Save $5,193 AUD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,091 AUD 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 $2,897 to $8,091, a $5,193 spread on the same certified stone. Queensmith lists it at $8,091. 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: $8,091 AUD|Low: $2,879 AUD|High: $8,244 AUD|Avg: $4,670 AUD|+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$2,897 AUD
Retailer 2$3,059 AUD
Retailer 11$3,488 AUD
Retailer 9$3,553 AUD
Retailer 3$3,996 AUD
Retailer 8$4,051 AUD
Retailer 5$4,116 AUD
Retailer 10$4,185 AUD
Retailer 7$4,809 AUD
Retailer 4$6,746 AUD
Queensmith$8,091 AUD

32 data points across 11 retailers

13 retailers$2,897 AUD to $8,091 AUD

A
Cheapest Retailer
-
$2,897 AUD
HK$15,900 HKD
A
Retailer 2
-
$3,059 AUD
₹204,642 INR
View
A
Retailer 3
-
$3,488 AUD
SGD 3,311 SGD
View
A
Retailer 4
-
$3,553 AUD
$2,496 USD
View
Final sale: no returns
A
Retailer 5
-
$3,723 AUD
$2,615 USD
View
Retailer 6
-
$3,996 AUD
$2,807 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$4,051 AUD
View
B+
Retailer 8
-
$4,051 AUD
$2,846 USD
View
B+
Retailer 9
-
$4,116 AUD
£2,276 GBP
View
B+
Retailer 10
-
$4,185 AUD
$2,940 USD
View
B+
Retailer 11
-
$4,809 AUD
€3,217 EUR
View
B
Retailer 12
-
$6,746 AUD
£3,731 GBP
View
Most Expensive
B
Queensmith
1559572833 · Oct 28
$8,091 AUD
£4,475 GBP
View
12 more retailers have this diamond
Prices start from $2,897 AUDSave up to $5,193 AUD

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
$2,897 AUD