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Round|Natural|GIA

1.30ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2536065047

Certificate GIA 2536065047

Diamond specifications and retailer prices

From £2,762 GBP
As of November 6, 2026
Save £1,466 GBP (35%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,549 GBP at MOH London · As of October 21, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2536065047. Listed at 18 retailers as of November 5, 2026, with a 53% 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

1.30
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2536065047
Dimensions6.87 × 6.92 × 4.33 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
6.87 mm6.92 mm1.30 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536065047
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.8%

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 6
Current: £5,549 GBP|Low: £2,656 GBP|High: £5,932 GBP|Avg: £3,765 GBP|-0.5%
MOH London
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 15£2,762 GBP
Retailer 14£2,897 GBP
Retailer 3£2,985 GBP
Retailer 8£3,240 GBP
Retailer 2£3,316 GBP
Retailer 7£3,355 GBP
Retailer 12£3,383 GBP
Retailer 16£3,493 GBP
Retailer 5£3,534 GBP
Retailer 13£3,534 GBP
Retailer 4£3,653 GBP
Retailer 6£3,827 GBP
Retailer 11£3,857 GBP
Retailer 10£3,892 GBP
Retailer 9£4,228 GBP
MOH London£5,549 GBP

23 data points across 16 retailers

18 retailers£2,762 GBP to £4,228 GBP

A
Cheapest Retailer
-
£2,762 GBP
B+
Retailer 2
-
£2,897 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,985 GBP
View
Retailer 4
-
£3,139 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£3,139 GBP
View
Price last confirmed 25 days ago
Retailer 6
-
£3,139 GBP
View
Price last confirmed 38 days ago
B+
Retailer 7
-
£3,316 GBP
View
Retailer 8
-
£3,383 GBP
View
Price last confirmed 14 days ago
Retailer 9
-
£3,493 GBP
View
Price last confirmed 28 days ago
B+
Retailer 10
-
£3,534 GBP
View
B+
Retailer 11
-
£3,534 GBP
View
Retailer 12
-
£3,622 GBP
View
Price last confirmed 28 days ago
B
Retailer 13
-
£3,653 GBP
View
Retailer 14
-
£3,827 GBP
View
Price last confirmed 26 days ago
B+
Retailer 15
-
£3,857 GBP
View
B+
Retailer 16
-
£3,892 GBP
View
B
Retailer 17
-
£4,228 GBP
View
Most Expensive
MOH London
A7134407C · Oct 21
£5,549 GBP
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from £2,762 GBPSave up to £1,466 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
£2,762 GBP