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Round|Natural|GIA

0.85ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1242009732

Certificate GIA 1242009732

Diamond specifications and retailer prices

From £999 GBP
$1,339 USD
As of October 31, 2026
7 retailers carry this diamond
Most expensive: £1,237 GBP at Wholesale Diamonds Direct · As of October 12, 2026
View at Wholesale Diamonds Direct

About this 0.85ct natural round diamond

This 0.85ct 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 1242009732. Listed at 7 retailers as of October 31, 2026. 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

0.85
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1242009732
Dimensions6.04 × 3.79 × 3.79 mm
L/W Ratio1.59
Culet sizeNone
Top View
6.04 mm3.79 mm0.85 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1242009732
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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: Oct 31
Current: £1,062 GBP|Low: £778 GBP|High: £1,285 GBP|Avg: £974 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 14, 2026
Retailer 9£778 GBP
Retailer 7£802 GBP
Retailer 2£816 GBP
Retailer 5£830 GBP
Retailer 3£838 GBP
Retailer 4£957 GBP
Retailer 1£1,062 GBP
Retailer 8£1,122 GBP
Retailer 6£1,131 GBP
Wholesale Diamonds Direct£1,237 GBP

28 data points across 10 retailers

7 retailers

Retailer 1
-
£778 GBP
$1,042 USD
Price last confirmed 21 days ago
Retailer 2
-
£802 GBP
$1,074 USD
View
Price last confirmed 17 days ago
Retailer 3
-
£830 GBP
SGD 1,503 SGD
View
Price last confirmed 19 days ago
Retailer 4
-
£838 GBP
View
Price last confirmed 18 days ago
A
Retailer 5
-
£999 GBP
$1,339 USD
View
Retailer 6
-
£1,062 GBP
View
Price last confirmed 17 days ago
Most Expensive
Wholesale Diamonds Direct
293599431 · Oct 12
£1,237 GBP
$1,657 USD
View
Price last confirmed 19 days ago
6 more retailers have this diamond
Prices start from £999 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
0.85ct Round
£999 GBP