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Round|Natural|GIA

0.81ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2566552396

Certificate GIA 2566552396

Diamond specifications and retailer prices

From £860 GBP
HK$9,000 HKD
As of October 30, 2026
Save £2,014 GBP (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,873 GBP at NZ Jewellers · As of October 27, 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 2566552396. Listed at 20 retailers as of October 27, 2026, with prices from £860 to £2,873, a £2,014 spread on the same certified stone. NZ Jewellers lists it at £2,873. 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
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2566552396
Dimensions5.94 × 5.99 × 3.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.94 mm5.99 mm0.81 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566552396
Side View
Table 57.0%Crown 35.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 62.0%

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: £2,873 GBP|Low: £860 GBP|High: £2,913 GBP|Avg: £1,361 GBP|-1.4%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 29, 2026
Retailer 13£860 GBP
Retailer 4£877 GBP
Retailer 10£1,026 GBP
Retailer 11£1,034 GBP
Retailer 14£1,057 GBP
Retailer 19£1,072 GBP
Retailer 5£1,087 GBP
Retailer 12£1,090 GBP
Retailer 20£1,162 GBP
Retailer 18£1,196 GBP
Retailer 17£1,215 GBP
Retailer 2£1,302 GBP
Retailer 3£1,351 GBP
Retailer 8£1,359 GBP
Retailer 6£1,436 GBP
Retailer 15£1,473 GBP
Retailer 9£1,538 GBP
Retailer 7£1,676 GBP
Retailer 16£2,046 GBP
NZ Jewellers£2,873 GBP

14 data points across 20 retailers

20 retailers£860 GBP to £2,873 GBP

A
Cheapest Retailer
-
£860 GBP
HK$9,000 HKD
A
Retailer 2
-
£877 GBP
₹111,878 INR
View
Retailer 3
-
£1,026 GBP
€1,310 EUR
View
Price last confirmed 6 days ago
Retailer 4
-
£1,034 GBP
$1,385 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,057 GBP
SGD 1,914 SGD
View
B+
Retailer 6
-
£1,072 GBP
$1,436 USD
View
Final sale: no returns
A
Retailer 7
-
£1,087 GBP
$1,457 USD
View
Retailer 8
-
£1,090 GBP
$1,460 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£1,162 GBP
$1,557 USD
View
B+
Retailer 10
-
£1,196 GBP
$1,603 USD
View
B+
Retailer 11
-
£1,215 GBP
$1,628 USD
View
B+
Retailer 12
-
£1,302 GBP
View
B+
Retailer 13
-
£1,351 GBP
View
B+
Retailer 14
-
£1,359 GBP
$1,821 USD
View
B+
Retailer 15
-
£1,436 GBP
$1,925 USD
View
B+
Retailer 16
-
£1,473 GBP
View
B+
Retailer 17
-
£1,538 GBP
€1,962 EUR
View
B
Retailer 18
-
£1,676 GBP
$2,245 USD
View
B
Retailer 19
-
£2,046 GBP
View
Most Expensive
B
NZ Jewellers
ba830a23-84f6-4e09-9c15-3ec86336003d · Oct 27
£2,873 GBP
$3,850 USD
View
19 more retailers have this diamond
Prices start from £860 GBPSave up to £2,014 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
£860 GBP