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Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 3545423253

Certificate GIA 3545423253

Diamond specifications and retailer prices

From $4,158 NZD
As of November 6, 2026
Save $4,571 NZD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,573 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 F 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 3545423253. Listed at 13 retailers as of November 4, 2026, with a 110% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545423253
Dimensions5.88 × 5.71 × 3.95 mm
L/W Ratio1.03
Top View
5.88 mm5.71 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545423253
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.1%

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 6
Current: $10,573 NZD|Low: $4,158 NZD|High: $10,607 NZD|Avg: $6,295 NZD|-0.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 7$4,158 NZD
Retailer 10$4,757 NZD
Retailer 4$4,831 NZD
Retailer 6$5,033 NZD
Retailer 2$5,110 NZD
Retailer 3$5,489 NZD
Retailer 5$5,554 NZD
Retailer 12$5,664 NZD
Retailer 8$6,092 NZD
Retailer 9$6,388 NZD
Retailer 11$8,729 NZD
Queensmith$10,573 NZD

24 data points across 12 retailers

13 retailers$4,158 NZD to $8,729 NZD

A
Cheapest Retailer
-
$4,158 NZD
A
Retailer 2
-
$4,757 NZD
View
B+
Retailer 3
-
$4,831 NZD
View
Final sale: no returns
B+
Retailer 4
-
$4,854 NZD
View
B+
Retailer 5
-
$5,033 NZD
View
B+
Retailer 6
-
$5,110 NZD
View
B+
Retailer 7
-
$5,489 NZD
View
B+
Retailer 8
-
$5,554 NZD
View
B+
Retailer 9
-
$5,664 NZD
View
B+
Retailer 10
-
$6,092 NZD
View
B+
Retailer 11
-
$6,388 NZD
View
B
Retailer 12
-
$8,729 NZD
View
Most Expensive
Queensmith
3545423253 · Oct 28
$10,573 NZD
£4,615 GBP
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from $4,158 NZDSave up to $4,571 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.

A
1.20ct Cushion
$4,158 NZD