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Round|Natural|GIA

1.30ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6492975872

Certificate GIA 6492975872

Diamond specifications and retailer prices

From £3,708 GBP
As of November 4, 2026
Save £3,466 GBP (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,173 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6492975872. Listed at 15 retailers as of November 4, 2026, with prices from £3,708 to £7,173, a £3,466 spread on the same certified stone. MOH London lists it at £7,173. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6492975872
Dimensions7.05 × 7.01 × 4.27 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.05 mm7.01 mm1.30 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492975872
Side View
Table 59.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 60.7%

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 4
Current: £7,173 GBP|Low: £3,708 GBP|High: £7,280 GBP|Avg: £5,221 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£3,708 GBP
Retailer 5£4,423 GBP
Retailer 2£4,606 GBP
Retailer 3£4,994 GBP
MOH London£7,173 GBP

42 data points across 5 retailers

15 retailers£3,708 GBP to £7,173 GBP

A
Cheapest Retailer
-
£3,708 GBP
A
Retailer 2
-
£3,750 GBP
View
A
Retailer 3
-
£3,858 GBP
View
B+
Retailer 4
-
£4,117 GBP
View
Retailer 5
-
£4,423 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£4,606 GBP
View
B+
Retailer 7
-
£4,825 GBP
View
B+
Retailer 8
-
£4,926 GBP
View
B+
Retailer 9
-
£4,926 GBP
View
B+
Retailer 10
-
£4,994 GBP
View
B
Retailer 11
-
£5,097 GBP
View
Retailer 12
-
£5,382 GBP
View
Price last confirmed 14 days ago
B
Retailer 13
-
£6,223 GBP
View
B
Retailer 14
-
£6,257 GBP
View
Most Expensive
B
MOH London
65FE5E683 · Nov 4
£7,173 GBP
View
14 more retailers have this diamond
Prices start from £3,708 GBPSave up to £3,466 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 Round
£3,708 GBP