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Round|Natural|GIA

0.81ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 3505566471

Certificate GIA 3505566471

Diamond specifications and retailer prices

From £578 GBP
As of November 5, 2026
Save £1,234 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,812 GBP at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3505566471. Listed at 9 retailers as of November 5, 2026, with prices from £578 to £1,812, a £1,234 spread on the same certified stone. NZ Jewellers lists it at £1,812. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3505566471
Dimensions5.93 × 5.95 × 3.73 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
5.93 mm5.95 mm0.81 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3505566471
Side View
Table 55.0%Crown 36.5°Girdle: Sli. ThickPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,812 GBP|Low: £578 GBP|High: £1,880 GBP|Avg: £852 GBP|-3.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7£578 GBP
Retailer 9£591 GBP
Retailer 8£600 GBP
Retailer 11£600 GBP
Retailer 6£666 GBP
Retailer 2£698 GBP
Retailer 3£711 GBP
Retailer 4£811 GBP
Retailer 10£1,022 GBP
Retailer 5£1,057 GBP
NZ Jewellers£1,812 GBP

28 data points across 11 retailers

9 retailers£578 GBP to £1,812 GBP

A
Cheapest Retailer
-
£578 GBP
A
Retailer 2
-
£591 GBP
View
A
Retailer 3
-
£600 GBP
View
A
Retailer 4
-
£666 GBP
View
A
Retailer 5
-
£698 GBP
View
B+
Retailer 6
-
£811 GBP
View
B
Retailer 7
-
£1,022 GBP
View
B
Retailer 8
-
£1,057 GBP
View
Most Expensive
C
NZ Jewellers
f82cbf11-ef89-490c-9c8e-28af64f274c3 · Nov 5
£1,812 GBP
$2,439 USD
View
8 more retailers have this diamond
Prices start from £578 GBPSave up to £1,234 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
£578 GBP