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Marquise|Natural|GIA

0.86ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6233964129

Certificate GIA 6233964129

Diamond specifications and retailer prices

From £1,515 GBP
$2,030 USD
As of November 1, 2026
Save £1,809 GBP (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,324 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.86ct natural marquise diamond

This 0.86ct natural marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6233964129. Listed at 8 retailers as of October 26, 2026, with prices from £1,515 to £3,324, a £1,809 spread on the same certified stone. MOH London lists it at £3,324. 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

0.86
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6233964129
Dimensions10.19 × 4.86 × 3.10 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizeNone
Top View
10.19 mm4.86 mm0.86 ctD / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 6233964129
Side View
Table 56.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.9%

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: Nov 1
Current: £3,324 GBP|Low: £1,515 GBP|High: £3,360 GBP|Avg: £2,161 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4£1,515 GBP
Retailer 8£1,892 GBP
Retailer 6£1,993 GBP
Retailer 7£1,993 GBP
Retailer 3£2,028 GBP
Retailer 5£2,060 GBP
Retailer 2£2,366 GBP
MOH London£3,324 GBP

42 data points across 8 retailers

8 retailers£1,515 GBP to £3,324 GBP

A
Cheapest Retailer
-
£1,515 GBP
$2,030 USD
B+
Retailer 2
-
£1,892 GBP
$2,535 USD
View
B+
Retailer 3
-
£1,993 GBP
$2,670 USD
View
B+
Retailer 4
-
£1,993 GBP
$2,670 USD
View
B+
Retailer 5
-
£2,028 GBP
View
B+
Retailer 6
-
£2,060 GBP
$2,760 USD
View
B+
Retailer 7
-
£2,366 GBP
€3,019 EUR
View
Most Expensive
B
MOH London
F49994C24 · Oct 26
£3,324 GBP
View
7 more retailers have this diamond
Prices start from £1,515 GBPSave up to £1,809 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
0.86ct Marquise
£1,515 GBP