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Round|Natural|GIA

1.30ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7451297901

Certificate GIA 7451297901

Diamond specifications and retailer prices

From £3,090 GBP
As of November 4, 2026
Save £4,628 GBP (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £7,718 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 7451297901. Listed at 14 retailers as of November 4, 2026, with prices from £3,090 to £7,718, a £4,628 spread on the same certified stone. Diamond Quarter lists it at £7,718. 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
FluorescenceFaint
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7451297901
Dimensions7.06 × 7.01 × 4.28 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.06 mm7.01 mm1.30 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7451297901
Side View
Table 60.0%Crown 33°Girdle: ThickPavilion 41.4°Culet: NoneDepth 60.9%

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 4
Current: £3,840 GBP|Low: £2,725 GBP|High: £6,303 GBP|Avg: £3,961 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4£3,124 GBP
Retailer 6£3,143 GBP
Retailer 5£3,270 GBP
Retailer 9£3,297 GBP
Retailer 3£3,754 GBP
Retailer 1£3,840 GBP
Retailer 7£4,315 GBP
Retailer 8£4,653 GBP
Retailer 2£6,211 GBP

38 data points across 9 retailers

14 retailers£3,090 GBP to £7,718 GBP

A
Cheapest Retailer
-
£3,090 GBP
A
Retailer 2
-
£3,124 GBP
View
A
Retailer 3
-
£3,143 GBP
View
A
Retailer 4
-
£3,270 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,297 GBP
View
A
Retailer 6
-
£3,754 GBP
View
A
Retailer 7
-
£3,840 GBP
View
B+
Retailer 8
-
£3,975 GBP
View
B+
Retailer 9
-
£3,975 GBP
View
B+
Retailer 10
-
£4,109 GBP
View
Retailer 11
-
£4,315 GBP
View
Price last confirmed 14 days ago
B
Retailer 12
-
£6,211 GBP
View
Retailer 13
-
£6,540 GBP
View
Price last confirmed 20 days ago
Most Expensive
B
Diamond Quarter
1.3SI2D7401BFFEN · Nov 5
£7,718 GBP
View
13 more retailers have this diamond
Prices start from £3,090 GBPSave up to £4,628 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
£3,090 GBP