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Cushion|Natural|GIA

1.20ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1559160548

Certificate GIA 1559160548

Diamond specifications and retailer prices

From $5,933 NZD
As of November 6, 2026
Save $6,425 NZD (52%) 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 1559160548. Listed at 20 retailers as of November 4, 2026, with a 108% 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
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559160548
Dimensions8.04 × 5.38 × 3.63 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Pinpoint
Top View
8.04 mm5.38 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559160548
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: 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: $8,423 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 4$5,933 NZD
Retailer 2$6,153 NZD
Retailer 7$6,786 NZD
Retailer 6$7,006 NZD
Retailer 3$7,183 NZD
Retailer 13$7,248 NZD
Retailer 8$7,484 NZD
Retailer 9$7,548 NZD
Retailer 5$7,861 NZD
Retailer 11$7,881 NZD
Retailer 15$8,049 NZD
Retailer 16$8,271 NZD
Retailer 10$8,756 NZD
Retailer 12$9,498 NZD
Retailer 14$12,359 NZD
Queensmith$12,703 NZD

22 data points across 16 retailers

20 retailers$5,933 NZD to $12,359 NZD

B+
Cheapest Retailer
-
$5,933 NZD
B+
Retailer 2
-
$6,153 NZD
View
B+
Retailer 3
-
$6,786 NZD
View
B+
Retailer 4
-
$7,006 NZD
View
B+
Retailer 5
-
$7,183 NZD
View
Final sale: no returns
B+
Retailer 6
-
$7,248 NZD
View
B+
Retailer 7
-
$7,484 NZD
View
B+
Retailer 8
-
$7,493 NZD
View
B+
Retailer 9
-
$7,495 NZD
View
B+
Retailer 10
-
$7,548 NZD
View
Retailer 11
-
$7,861 NZD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$7,881 NZD
View
B
Retailer 13
-
$8,017 NZD
View
B+
Retailer 14
-
$8,049 NZD
View
B+
Retailer 15
-
$8,271 NZD
View
Retailer 16
-
$8,293 NZD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$8,756 NZD
View
B
Retailer 18
-
$9,498 NZD
View
B
Retailer 19
-
$12,359 NZD
View
Most Expensive
Queensmith
1559160548 · 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 $6,425 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