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Round|Natural|GIA

1.30ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6552653011

Certificate GIA 6552653011

Diamond specifications and retailer prices

From £3,777 GBP
As of November 5, 2026
Save £3,465 GBP (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,243 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552653011. Listed at 15 retailers as of November 5, 2026, with prices from £3,777 to £7,243, a £3,465 spread on the same certified stone. NZ Jewellers lists it at £7,243. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552653011
Dimensions6.96 × 7.00 × 4.30 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.96 mm7.00 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552653011
Side View
Table 61.0%Crown 33.5°GirdlePavilion 41.6°Culet: NoneDepth 61.6%

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 5
Current: £7,243 GBP|Low: £3,777 GBP|High: £7,419 GBP|Avg: £4,758 GBP|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 10£3,777 GBP
Retailer 12£3,808 GBP
Retailer 5£3,997 GBP
Retailer 2£4,144 GBP
Retailer 9£4,156 GBP
Retailer 3£4,330 GBP
Retailer 4£4,330 GBP
Retailer 14£4,330 GBP
Retailer 13£4,445 GBP
Retailer 8£4,694 GBP
Retailer 6£4,997 GBP
Retailer 7£5,283 GBP
Retailer 11£6,362 GBP
NZ Jewellers£7,243 GBP

23 data points across 14 retailers

15 retailers£3,777 GBP to £7,243 GBP

A
Cheapest Retailer
-
£3,777 GBP
A
Retailer 2
-
£3,808 GBP
View
B+
Retailer 3
-
£3,997 GBP
View
Final sale: no returns
A
Retailer 4
-
£4,144 GBP
View
B+
Retailer 5
-
£4,156 GBP
View
Retailer 6
-
£4,330 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£4,330 GBP
View
B+
Retailer 8
-
£4,330 GBP
View
B+
Retailer 9
-
£4,445 GBP
View
Retailer 10
-
£4,454 GBP
View
Price last confirmed 28 days ago
B+
Retailer 11
-
£4,694 GBP
View
B+
Retailer 12
-
£4,997 GBP
View
B+
Retailer 13
-
£5,283 GBP
View
B
Retailer 14
-
£6,362 GBP
View
Most Expensive
B
NZ Jewellers
a4cd8d35-fc21-4115-b113-c83be46338ce · Nov 5
£7,243 GBP
$9,748 USD
View
14 more retailers have this diamond
Prices start from £3,777 GBPSave up to £3,465 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
£3,777 GBP