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Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6402308841

Certificate GIA 6402308841

Diamond specifications and retailer prices

From $4,825 NZD
As of November 6, 2026
Save $6,431 NZD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,256 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6402308841. Listed at 15 retailers as of November 5, 2026, with prices from $4,825 to $11,256, a $6,431 spread on the same certified stone. NZ Jewellers lists it at $11,256. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6402308841
Dimensions6.90 × 6.88 × 4.14 mm
L/W Ratio1.00
Top View
6.90 mm6.88 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6402308841
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 60.1%

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: $11,256 NZD|Low: $4,779 NZD|High: $11,256 NZD|Avg: $7,016 NZD
NZ Jewellers
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
November 6, 2026
Retailer 12$4,825 NZD
Retailer 5$5,735 NZD
Retailer 6$5,855 NZD
Retailer 4$5,964 NZD
Retailer 2$6,182 NZD
Retailer 13$6,462 NZD
Retailer 15$6,462 NZD
Retailer 7$6,476 NZD
Retailer 9$6,646 NZD
Retailer 8$6,709 NZD
Retailer 14$6,711 NZD
Retailer 3$7,456 NZD
Retailer 10$7,506 NZD
Retailer 11$10,776 NZD
NZ Jewellers$11,256 NZD

33 data points across 15 retailers

15 retailers$4,825 NZD to $11,256 NZD

A
Cheapest Retailer
-
$4,825 NZD
A
Retailer 2
-
$5,735 NZD
View
A
Retailer 3
-
$5,855 NZD
View
B+
Retailer 4
-
$5,964 NZD
View
Final sale: no returns
A
Retailer 5
-
$6,182 NZD
View
B+
Retailer 6
-
$6,462 NZD
View
Retailer 7
-
$6,462 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$6,476 NZD
View
B+
Retailer 9
-
$6,646 NZD
View
B+
Retailer 10
-
$6,709 NZD
View
B+
Retailer 11
-
$6,711 NZD
View
B+
Retailer 12
-
$7,456 NZD
View
B+
Retailer 13
-
$7,506 NZD
View
B
Retailer 14
-
$10,776 NZD
View
Most Expensive
B
NZ Jewellers
7f20be6f-6c8b-4fbf-8960-46686ad9de07 · Nov 5
$11,256 NZD
$6,240 USD
View
14 more retailers have this diamond
Prices start from $4,825 NZDSave up to $6,431 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 Round
$4,825 NZD