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Radiant|Natural|GIA

1.20ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 6545476302

Certificate GIA 6545476302

Diamond specifications and retailer prices

From £1,578 GBP
As of November 6, 2026
Save £2,049 GBP (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,473 GBP at NZ Jewellers · As of October 17, 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 6545476302. Listed at 17 retailers as of November 4, 2026, with a 130% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545476302
Dimensions7.15 × 5.33 × 3.53 mm
L/W Ratio1.34
Top View
7.15 mm5.33 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545476302
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

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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 6
Current: £2,197 GBP|Low: £1,568 GBP|High: £4,359 GBP|Avg: £2,420 GBP|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 8£1,578 GBP
Retailer 3£1,651 GBP
Retailer 6£1,909 GBP
Retailer 2£1,916 GBP
Retailer 10£2,182 GBP
Retailer 4£2,195 GBP
Retailer 1£2,197 GBP
Retailer 5£2,417 GBP
Retailer 7£3,627 GBP
Retailer 9£4,293 GBP

31 data points across 10 retailers

17 retailers£1,578 GBP to £3,627 GBP

A
Cheapest Retailer
-
£1,578 GBP
A
Retailer 2
-
£1,651 GBP
View
A
Retailer 3
-
£1,909 GBP
View
A
Retailer 4
-
£1,916 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,027 GBP
View
A
Retailer 6
-
£2,063 GBP
View
Retailer 7
-
£2,140 GBP
View
Price last confirmed 22 days ago
Retailer 8
-
£2,140 GBP
View
Price last confirmed 20 days ago
A
Retailer 9
-
£2,182 GBP
View
A
Retailer 10
-
£2,195 GBP
View
A
Retailer 11
-
£2,197 GBP
View
Retailer 12
-
£2,222 GBP
View
Price last confirmed 22 days ago
A
Retailer 13
-
£2,417 GBP
View
Retailer 14
-
£2,468 GBP
View
Price last confirmed 19 days ago
B
Retailer 15
-
£3,627 GBP
View
Retailer 16
-
£4,293 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
8f025ee0-91a2-48f0-a330-1c8bfd9622ec · Oct 17
£4,473 GBP
$5,987 USD
View
Price last confirmed 20 days ago
16 more retailers have this diamond
Prices start from £1,578 GBPSave up to £2,049 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
£1,578 GBP