CaratHunter
Plans
Round|Natural|GIA

0.81ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2566286977

Certificate GIA 2566286977

Diamond specifications and retailer prices

From £774 GBP
HK$8,100 HKD
As of October 30, 2026
Save £1,141 GBP (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,555 GBP at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566286977. Listed at 18 retailers as of October 29, 2026, with a 147% 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

0.81
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566286977
Dimensions5.93 × 5.96 × 3.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.93 mm5.96 mm0.81 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566286977
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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: Oct 30
Current: £1,160 GBP|Low: £774 GBP|High: £1,942 GBP|Avg: £1,184 GBP|+1.4%
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
October 29, 2026
Retailer 13£774 GBP
Retailer 10£784 GBP
Retailer 12£913 GBP
Retailer 14£922 GBP
Retailer 3£952 GBP
Retailer 5£959 GBP
Retailer 4£1,084 GBP
Retailer 1£1,160 GBP
Retailer 11£1,199 GBP
Retailer 2£1,232 GBP
Retailer 7£1,318 GBP
Retailer 9£1,360 GBP
Retailer 6£1,496 GBP
Retailer 8£1,915 GBP

30 data points across 14 retailers

18 retailers£774 GBP to £1,915 GBP

A
Cheapest Retailer
-
£774 GBP
HK$8,100 HKD
A
Retailer 2
-
£784 GBP
₹100,061 INR
View
Retailer 3
-
£913 GBP
€1,165 EUR
View
Price last confirmed 7 days ago
Retailer 4
-
£922 GBP
$1,235 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£952 GBP
SGD 1,724 SGD
View
A
Retailer 6
-
£978 GBP
$1,311 USD
View
A
Retailer 7
-
£981 GBP
$1,314 USD
View
Retailer 8
-
£988 GBP
$1,324 USD
View
Price last confirmed 11 days ago
Retailer 9
-
£1,048 GBP
$1,404 USD
View
Price last confirmed 34 days ago
Retailer 10
-
£1,084 GBP
SGD 1,962 SGD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
£1,160 GBP
View
B+
Retailer 12
-
£1,199 GBP
$1,607 USD
View
B+
Retailer 13
-
£1,232 GBP
View
B+
Retailer 14
-
£1,318 GBP
View
B+
Retailer 15
-
£1,360 GBP
€1,736 EUR
View
B+
Retailer 16
-
£1,496 GBP
$2,005 USD
View
B
Retailer 17
-
£1,915 GBP
View
Most Expensive
NZ Jewellers
1c892efb-6e1d-4457-a0dc-4536c51c2335 · Sep 26
£2,555 GBP
$3,424 USD
View
Price last confirmed 36 days ago
17 more retailers have this diamond
Prices start from £774 GBPSave up to £1,141 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
0.81ct Round
£774 GBP