Round|Natural|GIA

1.01ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6565017165

Certificate GIA 6565017165

Diamond specifications and retailer prices

From £1,398 GBP
As of November 5, 2026
Save £852 GBP (38%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,076 GBP at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565017165. Listed at 22 retailers as of November 5, 2026, with a 61% 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

1.01
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6565017165
Dimensions6.34 × 6.37 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.34 mm6.37 mm1.01 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565017165
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: £1,764 GBP|Low: £1,302 GBP|High: £3,277 GBP|Avg: £1,918 GBP|+0.1%
Retailer 1
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
Retailer 17
November 6, 2026
Retailer 4£1,339 GBP
Retailer 16£1,398 GBP
Retailer 2£1,542 GBP
Retailer 3£1,657 GBP
Retailer 11£1,657 GBP
Retailer 8£1,663 GBP
Retailer 1£1,764 GBP
Retailer 5£1,826 GBP
Retailer 14£1,932 GBP
Retailer 17£1,932 GBP
Retailer 12£1,938 GBP
Retailer 10£1,991 GBP
Retailer 13£2,149 GBP
Retailer 7£2,236 GBP
Retailer 15£2,250 GBP
Retailer 9£2,251 GBP
Retailer 6£3,098 GBP

30 data points across 17 retailers

22 retailers£1,398 GBP to £2,250 GBP

Retailer 1
-
£1,339 GBP
Price last confirmed 12 days ago
A
Retailer 2
-
£1,398 GBP
View
A
Retailer 3
-
£1,542 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,657 GBP
View
Retailer 5
-
£1,657 GBP
View
Price last confirmed 12 days ago
Retailer 6
-
£1,663 GBP
View
Price last confirmed 29 days ago
B+
Retailer 7
-
£1,764 GBP
View
Retailer 8
-
£1,826 GBP
View
Price last confirmed 12 days ago
Retailer 9
-
£1,828 GBP
View
Price last confirmed 25 days ago
B+
Retailer 10
-
£1,863 GBP
View
B+
Retailer 11
-
£1,932 GBP
View
B+
Retailer 12
-
£1,932 GBP
View
B+
Retailer 13
-
£1,938 GBP
View
Retailer 14
-
£1,950 GBP
View
Price last confirmed 44 days ago
B+
Retailer 15
-
£1,991 GBP
View
B+
Retailer 16
-
£2,149 GBP
View
Retailer 17
-
£2,250 GBP
View
Price last confirmed 45 days ago
B+
Retailer 18
-
£2,250 GBP
View
Retailer 19
-
£2,251 GBP
View
Price last confirmed 30 days ago
Retailer 20
-
£3,098 GBP
View
Price last confirmed 12 days ago
Retailer 21
-
£3,823 GBP
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
4298ffc3-cf9e-4ebf-8551-b9f12e671572 · Sep 21
£4,076 GBP
$5,486 USD
View
Price last confirmed 45 days ago
21 more retailers have this diamond
Prices start from £1,398 GBPSave up to £852 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
1.01ct Round
£1,398 GBP