Round|Natural|GIA

1.01ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5516016874

Certificate GIA 5516016874

Diamond specifications and retailer prices

From £1,626 GBP
As of November 6, 2026
Save £2,638 GBP (62%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,558 GBP at NZ Jewellers · As of September 26, 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 5516016874. Listed at 21 retailers as of November 5, 2026, with a 162% 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
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5516016874
Dimensions6.36 × 6.32 × 3.98 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.36 mm6.32 mm1.01 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5516016874
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: £2,086 GBP|Low: £1,607 GBP|High: £3,685 GBP|Avg: £2,383 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£1,626 GBP
Retailer 8£2,012 GBP
Retailer 1£2,086 GBP
Retailer 2£2,294 GBP
Retailer 9£2,443 GBP
Retailer 4£2,524 GBP
Retailer 3£2,534 GBP
Retailer 5£2,661 GBP
Retailer 6£3,636 GBP

35 data points across 9 retailers

21 retailers£1,626 GBP to £4,264 GBP

A
Cheapest Retailer
-
£1,626 GBP
B+
Retailer 2
-
£1,953 GBP
View
B+
Retailer 3
-
£2,012 GBP
View
Final sale: no returns
Retailer 4
-
£2,072 GBP
View
Price last confirmed 117 days ago
B+
Retailer 5
-
£2,086 GBP
View
B+
Retailer 6
-
£2,094 GBP
View
B+
Retailer 7
-
£2,129 GBP
View
Retailer 8
-
£2,181 GBP
View
Price last confirmed 29 days ago
Retailer 9
-
£2,181 GBP
View
Price last confirmed 25 days ago
B+
Retailer 10
-
£2,259 GBP
View
Retailer 11
-
£2,265 GBP
View
Price last confirmed 38 days ago
B+
Retailer 12
-
£2,286 GBP
View
B+
Retailer 13
-
£2,294 GBP
View
Retailer 14
-
£2,443 GBP
View
Price last confirmed 30 days ago
Retailer 15
-
£2,516 GBP
View
Price last confirmed 28 days ago
B+
Retailer 16
-
£2,524 GBP
View
B+
Retailer 17
-
£2,534 GBP
View
B+
Retailer 18
-
£2,661 GBP
View
B
Retailer 19
-
£3,636 GBP
View
B
Retailer 20
-
£4,264 GBP
View
Most Expensive
NZ Jewellers
0a4d0edf-0fac-4716-9d4b-4bb4273fc0a6 · Sep 26
£4,558 GBP
$6,135 USD
View
Price last confirmed 40 days ago
20 more retailers have this diamond
Prices start from £1,626 GBPSave up to £2,638 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
£1,626 GBP