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Radiant|Natural|GIA

1.20ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 7558283386

Certificate GIA 7558283386

Diamond specifications and retailer prices

From £1,779 GBP
As of November 6, 2026
Save £2,065 GBP (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,844 GBP at NZ Jewellers · As of November 3, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558283386. Listed at 8 retailers as of November 3, 2026, with prices from £1,779 to £3,844, a £2,065 spread on the same certified stone. NZ Jewellers lists it at £3,844. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.77°
Pavilion angle36.12°
OriginNatural
Grading LabGIA
CertificateGIA 7558283386
Dimensions6.85 × 5.33 × 3.70 mm
L/W Ratio1.29
Girdle conditionThick
Key to symbols
Crystal, Feather, Needle
Top View
6.85 mm5.33 mm1.20 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558283386
Side View
Table 71.0%Crown 51.77°Girdle: STK-THKPavilion 36.12°Culet: NoneDepth 69.5%

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: £3,844 GBP|Low: £1,779 GBP|High: £3,990 GBP|Avg: £2,367 GBP|-3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£1,779 GBP
Retailer 2£1,817 GBP
Retailer 7£1,839 GBP
Retailer 4£1,923 GBP
Retailer 8£1,928 GBP
Retailer 6£1,946 GBP
Retailer 9£2,337 GBP
Retailer 3£3,221 GBP
NZ Jewellers£3,844 GBP

32 data points across 9 retailers

8 retailers£1,779 GBP to £3,844 GBP

A
Cheapest Retailer
-
£1,779 GBP
A
Retailer 2
-
£1,817 GBP
View
A
Retailer 3
-
£1,839 GBP
View
A
Retailer 4
-
£1,923 GBP
View
Retailer 5
-
£1,928 GBP
View
Price last confirmed 26 days ago
A
Retailer 6
-
£1,946 GBP
View
B+
Retailer 7
-
£3,221 GBP
View
Most Expensive
B
NZ Jewellers
adaf3158-77e3-4311-9a90-5659116a1145 · Nov 3
£3,844 GBP
$5,145 USD
View
7 more retailers have this diamond
Prices start from £1,779 GBPSave up to £2,065 GBP

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
£1,779 GBP