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Radiant|Natural|GIA

1.30ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6551980848

Certificate GIA 6551980848

Diamond specifications and retailer prices

From £4,013 GBP
As of November 6, 2026
Save £2,989 GBP (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £7,002 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half 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 6551980848. Listed at 7 retailers as of November 4, 2026, with prices from £4,013 to £7,002, a £2,989 spread on the same certified stone. MOH London lists it at £7,002. 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

1.30
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551980848
Dimensions7.40 × 5.72 × 3.83 mm
L/W Ratio1.29
Culet sizeNone
Top View
7.40 mm5.72 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551980848
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: NoneDepth 66.9%

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 6
Current: £7,002 GBP|Low: £4,143 GBP|High: £7,058 GBP|Avg: £4,959 GBP|+2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3£4,214 GBP
Retailer 5£4,249 GBP
Retailer 2£4,452 GBP
Retailer 6£4,693 GBP
Retailer 4£5,313 GBP
MOH London£7,002 GBP

40 data points across 6 retailers

7 retailers£4,013 GBP to £7,002 GBP

A
Cheapest Retailer
-
£4,013 GBP
B+
Retailer 2
-
£4,214 GBP
View
B+
Retailer 3
-
£4,249 GBP
View
B+
Retailer 4
-
£4,452 GBP
View
Retailer 5
-
£4,693 GBP
View
Price last confirmed 28 days ago
B+
Retailer 6
-
£5,313 GBP
View
Most Expensive
B
MOH London
B97F924C4 · Nov 4
£7,002 GBP
View
6 more retailers have this diamond
Prices start from £4,013 GBPSave up to £2,989 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
1.30ct Radiant
£4,013 GBP