Round|Natural|GIA

0.81ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2556838914

Certificate GIA 2556838914

Diamond specifications and retailer prices

From £948 GBP
$1,272 USD
As of November 2, 2026
Save £1,818 GBP (66%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £2,765 GBP at NZ Jewellers · As of October 3, 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 2556838914. Listed at 27 retailers as of November 2, 2026, with a 192% 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 angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556838914
Dimensions5.96 × 5.92 × 3.73 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.96 mm5.92 mm0.81 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556838914
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°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 2
Current: £1,247 GBP|Low: £814 GBP|High: £2,366 GBP|Avg: £1,326 GBP|+41.6%
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
November 2, 2026
Retailer 6£814 GBP
Retailer 16£948 GBP
Retailer 5£952 GBP
Retailer 13£1,027 GBP
Retailer 3£1,089 GBP
Retailer 4£1,107 GBP
Retailer 7£1,118 GBP
Retailer 15£1,242 GBP
Retailer 1£1,247 GBP
Retailer 14£1,353 GBP
Retailer 8£1,368 GBP
Retailer 2£1,479 GBP
Retailer 9£1,541 GBP
Retailer 12£1,673 GBP
Retailer 10£1,986 GBP
Retailer 11£2,361 GBP

34 data points across 16 retailers

27 retailers£948 GBP to £2,765 GBP

Retailer 1
-
£725 GBP
HK$7,600 HKD
Price last confirmed 59 days ago
A
Retailer 2
-
£948 GBP
$1,272 USD
View
Final sale: no returns
A
Retailer 3
-
£952 GBP
$1,277 USD
View
Retailer 4
-
£1,027 GBP
$1,378 USD
View
Price last confirmed 24 days ago
Retailer 5
-
£1,027 GBP
$1,378 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
£1,027 GBP
$1,378 USD
View
Retailer 7
-
£1,027 GBP
$1,378 USD
View
Price last confirmed 11 days ago
Retailer 8
-
£1,027 GBP
$1,378 USD
View
Price last confirmed 17 days ago
Retailer 9
-
£1,075 GBP
$1,442 USD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
£1,089 GBP
$1,462 USD
View
B+
Retailer 11
-
£1,107 GBP
$1,485 USD
View
B+
Retailer 12
-
£1,118 GBP
A$2,308 AUD
View
Retailer 13
-
£1,185 GBP
$1,590 USD
View
Price last confirmed 24 days ago
Retailer 14
-
£1,185 GBP
$1,590 USD
View
Price last confirmed 12 days ago
B+
Retailer 15
-
£1,185 GBP
$1,590 USD
View
B+
Retailer 16
-
£1,242 GBP
$1,667 USD
View
B+
Retailer 17
-
£1,247 GBP
View
B+
Retailer 18
-
£1,353 GBP
View
Retailer 19
-
£1,479 GBP
A$3,054 AUD
View
Price last confirmed 27 days ago
B+
Retailer 20
-
£1,541 GBP
€1,969 EUR
View
Retailer 21
-
£1,673 GBP
ZAR 36,263 ZAR
View
Price last confirmed 7 days ago
B
Retailer 22
-
£1,986 GBP
View
B
Retailer 23
-
£2,361 GBP
View
B
Retailer 24
-
£2,765 GBP
$3,711 USD
View
Retailer 25
-
£2,765 GBP
$3,711 USD
View
Price last confirmed 36 days ago
Retailer 26
-
£2,765 GBP
$3,711 USD
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
6a7db885-63df-490f-b5c9-02d667a611f9 · Oct 3
£2,765 GBP
$3,711 USD
View
Price last confirmed 30 days ago
26 more retailers have this diamond
Prices start from £948 GBPSave up to £1,818 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
£948 GBP