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Cushion|Natural|GIA

1.20ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 6551358270

Certificate GIA 6551358270

Diamond specifications and retailer prices

From $3,298 AUD
HK$18,100 HKD
As of November 1, 2026
Save $5,235 AUD (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,534 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 6551358270. Listed at 13 retailers as of October 28, 2026, with prices from $3,298 to $8,534, a $5,235 spread on the same certified stone. Queensmith lists it at $8,534. 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 6551358270
Dimensions7.32 × 5.46 × 3.67 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural
Top View
7.32 mm5.46 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551358270
Side View
Table 65.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 67.1%

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: $8,534 AUD|Low: $3,280 AUD|High: $8,705 AUD|Avg: $5,006 AUD|+0.9%
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 5$3,298 AUD
Retailer 2$3,476 AUD
Retailer 3$4,005 AUD
Retailer 9$4,049 AUD
Retailer 4$4,584 AUD
Retailer 7$4,591 AUD
Retailer 11$4,597 AUD
Retailer 10$4,741 AUD
Retailer 6$5,136 AUD
Retailer 8$7,346 AUD
Queensmith$8,534 AUD

30 data points across 11 retailers

13 retailers$3,298 AUD to $8,534 AUD

A
Cheapest Retailer
-
$3,298 AUD
HK$18,100 HKD
A
Retailer 2
-
$3,476 AUD
₹232,561 INR
View
A
Retailer 3
-
$4,005 AUD
SGD 3,802 SGD
View
B+
Retailer 4
-
$4,049 AUD
$2,844 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,238 AUD
$2,977 USD
View
B+
Retailer 6
-
$4,584 AUD
£2,535 GBP
View
B+
Retailer 7
-
$4,591 AUD
$3,225 USD
View
B+
Retailer 8
-
$4,597 AUD
SGD 4,364 SGD
View
B+
Retailer 9
-
$4,643 AUD
View
B+
Retailer 10
-
$4,741 AUD
$3,330 USD
View
B+
Retailer 11
-
$5,136 AUD
€3,436 EUR
View
B
Retailer 12
-
$7,346 AUD
£4,063 GBP
View
Most Expensive
B
Queensmith
6551358270 · Oct 28
$8,534 AUD
£4,720 GBP
View
12 more retailers have this diamond
Prices start from $3,298 AUDSave up to $5,235 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
$3,298 AUD