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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 7513903289

Certificate GIA 7513903289

Diamond specifications and retailer prices

From $3,666 NZD
As of November 5, 2026
Save $3,092 NZD (46%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,161 NZD at NZ Jewellers · As of September 28, 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 7513903289. Listed at 10 retailers as of November 1, 2026, with a 84% 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
FluorescenceMedium
Crown angle51.28°
Pavilion angle28.81°
OriginNatural
Grading LabGIA
CertificateGIA 7513903289
Dimensions6.51 × 5.12 × 3.59 mm
L/W Ratio1.27
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.51 mm5.12 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7513903289
Side View
Table 65.0%Crown 51.28°GirdlePavilion 28.81°CuletDepth 70.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,666 NZD|Low: $3,563 NZD|High: $6,920 NZD|Avg: $4,677 NZD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 1$3,666 NZD
Retailer 3$3,761 NZD
Retailer 2$3,933 NZD
Retailer 5$4,742 NZD
Retailer 4$6,757 NZD

42 data points across 5 retailers

10 retailers$3,666 NZD to $6,757 NZD

A
Cheapest Retailer
-
$3,666 NZD
A
Retailer 2
-
$3,761 NZD
View
Retailer 3
-
$3,857 NZD
View
Price last confirmed 30 days ago
Retailer 4
-
$3,904 NZD
View
Price last confirmed 42 days ago
A
Retailer 5
-
$3,933 NZD
View
Retailer 6
-
$4,084 NZD
View
Price last confirmed 38 days ago
Retailer 7
-
$4,742 NZD
View
Price last confirmed 32 days ago
B
Retailer 8
-
$6,757 NZD
View
Retailer 9
-
$8,065 NZD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
528b5ea0-9189-4a0a-a937-0f0f59e73040 · Sep 28
$8,161 NZD
$4,524 USD
View
Price last confirmed 40 days ago
9 more retailers have this diamond
Prices start from $3,666 NZDSave up to $3,092 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 Radiant
$3,666 NZD