Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 7546246085

Certificate GIA 7546246085

Diamond specifications and retailer prices

From £2,600 GBP
As of November 3, 2026
Save £1,925 GBP (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,787 GBP at NZ Jewellers · As of September 29, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546246085. Listed at 9 retailers as of November 2, 2026, with a 74% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle51.86°
Pavilion angle35.53°
OriginNatural
Grading LabGIA
CertificateGIA 7546246085
Dimensions6.87 × 5.30 × 3.65 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Pinpoint
Top View
6.87 mm5.30 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7546246085
Side View
Table 70.0%Crown 51.86°GirdlePavilion 35.53°CuletDepth 68.9%

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 3
Current: £2,640 GBP|Low: £2,600 GBP|High: £4,650 GBP|Avg: £3,514 GBP|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3£2,600 GBP
Retailer 1£2,640 GBP
Retailer 4£2,943 GBP
Retailer 5£2,989 GBP
Retailer 6£3,335 GBP
Retailer 7£3,834 GBP
Retailer 2£4,525 GBP
Retailer 8£4,624 GBP

33 data points across 8 retailers

9 retailers£2,600 GBP to £4,525 GBP

B+
Cheapest Retailer
-
£2,600 GBP
B+
Retailer 2
-
£2,640 GBP
View
Retailer 3
-
£2,748 GBP
View
Price last confirmed 46 days ago
Retailer 4
-
£2,748 GBP
View
Price last confirmed 30 days ago
Retailer 5
-
£2,853 GBP
View
Price last confirmed 38 days ago
Retailer 6
-
£2,943 GBP
View
Price last confirmed 30 days ago
B
Retailer 7
-
£4,525 GBP
View
Retailer 8
-
£4,787 GBP
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
c75538bf-6f6b-417e-9330-9721063b6d7e · Sep 29
£4,787 GBP
$6,407 USD
View
Price last confirmed 38 days ago
8 more retailers have this diamond
Prices start from £2,600 GBPSave up to £1,925 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.

B+
1.20ct Radiant
£2,600 GBP