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Marquise|Natural|GIA

0.81ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6542506893

Certificate GIA 6542506893

Diamond specifications and retailer prices

From £1,719 GBP
CA$3,205 CAD
As of November 2, 2026
Save £126 GBP (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,846 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.81ct natural marquise diamond

This 0.81ct natural marquise sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542506893. Listed at 2 retailers as of November 2, 2026, with a relatively tight 7% 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.61°
Pavilion angle39.54°
OriginNatural
Grading LabGIA
CertificateGIA 6542506893
Dimensions9.01 × 4.79 × 3.11 mm
L/W Ratio1.88
Top View
9.01 mm4.79 mm0.81 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542506893
Side View
Table 61.0%Crown 40.61°Girdle: MED-VTKPavilion 39.54°Culet: NoneDepth 65.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,846 GBP|Low: £645 GBP|High: £1,864 GBP|Avg: £1,263 GBP|+1.5%
77 Diamonds
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
November 2, 2026
Retailer 4£645 GBP
Retailer 11£960 GBP
Retailer 3£968 GBP
Retailer 14£984 GBP
Retailer 12£1,021 GBP
Retailer 6£1,053 GBP
Retailer 10£1,206 GBP
Retailer 5£1,344 GBP
Retailer 8£1,363 GBP
Retailer 9£1,446 GBP
Retailer 7£1,553 GBP
Retailer 13£1,567 GBP
Retailer 2£1,719 GBP
77 Diamonds£1,846 GBP

38 data points across 14 retailers

2 retailers£1,719 GBP to £1,846 GBP

B
Cheapest Retailer
-
£1,719 GBP
CA$3,205 CAD
Most Expensive
B
77 Diamonds
MQMBXSMZVFNX · Nov 2
£1,846 GBP
View
1 more retailer has this diamond
Prices start from £1,719 GBPSave up to £126 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
£1,719 GBP