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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5556393129

Certificate GIA 5556393129

Diamond specifications and retailer prices

From $5,855 NZD
As of November 4, 2026
Save $5,635 NZD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,491 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant 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 5556393129. Listed at 19 retailers as of November 4, 2026, with prices from $5,855 to $11,491, a $5,635 spread on the same certified stone. NZ Jewellers lists it at $11,491. 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
Crown angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556393129
Dimensions7.49 × 5.26 × 3.65 mm
L/W Ratio1.42
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud
Top View
7.49 mm5.26 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556393129
Side View
Table 70.0%Crown 42.2°Girdle: ThickPavilionCulet: NoneDepth 69.4%

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 4
Current: $11,491 NZD|Low: $5,704 NZD|High: $12,175 NZD|Avg: $7,472 NZD|-5.6%
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
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 5$5,855 NZD
Retailer 14$6,025 NZD
Retailer 7$6,086 NZD
Retailer 9$6,332 NZD
Retailer 11$6,440 NZD
Retailer 3$6,595 NZD
Retailer 10$6,595 NZD
Retailer 13$6,824 NZD
Retailer 8$6,849 NZD
Retailer 4$6,857 NZD
Retailer 18$7,026 NZD
Retailer 6$7,165 NZD
Retailer 17$7,609 NZD
Retailer 15$7,677 NZD
Retailer 16$8,049 NZD
Retailer 2$8,422 NZD
Retailer 12$10,971 NZD
NZ Jewellers$11,491 NZD

24 data points across 18 retailers

19 retailers$5,855 NZD to $11,491 NZD

B+
Cheapest Retailer
-
$5,855 NZD
B+
Retailer 2
-
$6,025 NZD
View
B+
Retailer 3
-
$6,086 NZD
View
Final sale: no returns
B+
Retailer 4
-
$6,332 NZD
View
B+
Retailer 5
-
$6,440 NZD
View
B+
Retailer 6
-
$6,595 NZD
View
Retailer 7
-
$6,595 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$6,824 NZD
View
B+
Retailer 9
-
$6,849 NZD
View
B+
Retailer 10
-
$6,857 NZD
View
B+
Retailer 11
-
$7,026 NZD
View
B+
Retailer 12
-
$7,165 NZD
View
Retailer 13
-
$7,344 NZD
View
Price last confirmed 30 days ago
B+
Retailer 14
-
$7,609 NZD
View
B+
Retailer 15
-
$7,677 NZD
View
B+
Retailer 16
-
$8,049 NZD
View
Retailer 17
-
$8,422 NZD
View
B
Retailer 18
-
$10,971 NZD
View
Most Expensive
B
NZ Jewellers
92481498-3960-449d-88fe-049ad514a65a · Nov 5
$11,491 NZD
$6,370 USD
View
18 more retailers have this diamond
Prices start from $5,855 NZDSave up to $5,635 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 Radiant
$5,855 NZD