Marquise|Natural|GIA

0.81ct G SI2 Marquise Natural Diamond

GD • G/SI2 • GIA 34

Certificate GIA 34

Diamond specifications and retailer prices

From £803 GBP
$1,078 USD
As of October 31, 2026
Save £36 GBP (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £839 GBP at B2C Jewels · As of November 2, 2026
View at B2C Jewels

About this 0.81ct natural marquise diamond

This 0.81ct natural marquise sits in the just-under-one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.81
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 34
Dimensions8.26 × 4.99 mm
L/W Ratio1.66
Top View
8.26 mm4.99 mm0.81 ctG / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 34
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £839 GBP|Low: £803 GBP|High: £839 GBP|Avg: £815 GBP|+1.4%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2£803 GBP
B2C Jewels£839 GBP

3 data points across 2 retailers

2 retailers£803 GBP to £839 GBP

B+
Cheapest Retailer
-
£803 GBP
$1,078 USD
Most Expensive
B+
B2C Jewels
18259019 · Nov 2
£839 GBP
$1,126 USD
View
1 more retailer has this diamond
Prices start from £803 GBPSave up to £36 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.

B+
0.81ct Marquise
£803 GBP