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0.81ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6562651309

Certificate GIA 6562651309

Diamond specifications and retailer prices

From £940 GBP
SGD 1,702 SGD
As of October 31, 2026
Save £748 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,688 GBP at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562651309. Listed at 13 retailers as of October 30, 2026, with prices from £940 to £1,688, a £748 spread on the same certified stone. Helzberg Diamonds lists it at £1,688. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6562651309
Dimensions5.92 × 5.96 × 3.73 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.92 mm5.96 mm0.81 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562651309
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°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: Oct 31
Current: £1,688 GBP|Low: £942 GBP|High: £1,688 GBP|Avg: £1,194 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 8£942 GBP
Retailer 12£958 GBP
Retailer 11£970 GBP
Retailer 3£1,026 GBP
Retailer 5£1,047 GBP
Retailer 7£1,149 GBP
Retailer 2£1,182 GBP
Retailer 9£1,275 GBP
Retailer 4£1,318 GBP
Retailer 6£1,361 GBP
Retailer 10£1,516 GBP
Helzberg Diamonds£1,688 GBP

14 data points across 12 retailers

13 retailers£940 GBP to £1,688 GBP

A
Cheapest Retailer
-
£940 GBP
SGD 1,702 SGD
A
Retailer 2
-
£942 GBP
$1,262 USD
View
A
Retailer 3
-
£958 GBP
$1,284 USD
View
A
Retailer 4
-
£970 GBP
$1,300 USD
View
B+
Retailer 5
-
£1,026 GBP
SGD 1,857 SGD
View
B+
Retailer 6
-
£1,047 GBP
View
B+
Retailer 7
-
£1,149 GBP
$1,540 USD
View
B+
Retailer 8
-
£1,182 GBP
$1,584 USD
View
B+
Retailer 9
-
£1,275 GBP
View
B
Retailer 10
-
£1,318 GBP
$1,766 USD
View
B+
Retailer 11
-
£1,361 GBP
€1,737 EUR
View
B
Retailer 12
-
£1,516 GBP
$2,031 USD
View
Most Expensive
B
Helzberg Diamonds
XZRMLMIMLHJGP · Oct 30
£1,688 GBP
$2,262 USD
View
12 more retailers have this diamond
Prices start from £940 GBPSave up to £748 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
£940 GBP