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Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 7551552121

Certificate GIA 7551552121

Diamond specifications and retailer prices

From $5,933 NZD
As of November 6, 2026
Save $6,586 NZD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,703 NZD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551552121. Listed at 20 retailers as of November 1, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551552121
Dimensions7.57 × 5.31 × 3.58 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cavity, Feather, Needle, Indented Natural
Top View
7.57 mm5.31 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551552121
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $12,703 NZD|Low: $5,888 NZD|High: $13,053 NZD|Avg: $8,515 NZD|-2.3%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 15$5,933 NZD
Retailer 2$6,153 NZD
Retailer 5$6,786 NZD
Retailer 13$7,248 NZD
Retailer 4$7,255 NZD
Retailer 8$7,484 NZD
Retailer 9$7,625 NZD
Retailer 16$7,861 NZD
Retailer 11$7,916 NZD
Retailer 3$8,128 NZD
Retailer 7$8,285 NZD
Retailer 6$8,350 NZD
Retailer 10$8,845 NZD
Retailer 12$9,591 NZD
Retailer 14$12,519 NZD
Queensmith$12,703 NZD

23 data points across 16 retailers

20 retailers$5,933 NZD to $12,519 NZD

B+
Cheapest Retailer
-
$5,933 NZD
B+
Retailer 2
-
$6,153 NZD
View
B+
Retailer 3
-
$6,786 NZD
View
B+
Retailer 4
-
$7,248 NZD
View
B+
Retailer 5
-
$7,255 NZD
View
Final sale: no returns
B+
Retailer 6
-
$7,484 NZD
View
B+
Retailer 7
-
$7,493 NZD
View
B+
Retailer 8
-
$7,495 NZD
View
B+
Retailer 9
-
$7,625 NZD
View
Retailer 10
-
$7,861 NZD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$7,916 NZD
View
B
Retailer 12
-
$8,017 NZD
View
B
Retailer 13
-
$8,128 NZD
View
B
Retailer 14
-
$8,285 NZD
View
Retailer 15
-
$8,293 NZD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$8,350 NZD
View
B
Retailer 17
-
$8,845 NZD
View
B
Retailer 18
-
$9,591 NZD
View
B
Retailer 19
-
$12,519 NZD
View
Most Expensive
Queensmith
7551552121 · Oct 28
$12,703 NZD
£5,545 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $5,933 NZDSave up to $6,586 NZD

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.

B+
1.20ct Cushion
$5,933 NZD