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Marquise|Lab Grown|IGI

0.85ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG691587807

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG691587807

Diamond specifications and retailer prices

From £107 GBP
$142 USD
As of October 28, 2026
Save £847 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £954 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.85ct lab-grown marquise diamond

This 0.85ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG691587807 or 691587807. Listed at 10 retailers as of October 28, 2026, with prices from £107 to £954, a £847 spread on the same certified stone. MOH London lists it at £954. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691587807
Dimensions9.81 × 4.99 × 3.10 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.81 mm4.99 mm0.85 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG691587807
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 62.1%

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 28
Current: £954 GBP|Low: £107 GBP|High: £954 GBP|Avg: £279 GBP
MOH London
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 29, 2026
Retailer 12£107 GBP
Retailer 8£121 GBP
Retailer 13£128 GBP
Retailer 15£135 GBP
Retailer 9£165 GBP
Retailer 4£188 GBP
Retailer 14£220 GBP
Retailer 3£234 GBP
Retailer 2£234 GBP
Retailer 6£294 GBP
Retailer 10£295 GBP
Retailer 11£366 GBP
Retailer 5£481 GBP
Retailer 7£526 GBP
MOH London£954 GBP

2 data points across 15 retailers

10 retailers£107 GBP to £954 GBP

A
Cheapest Retailer
-
£107 GBP
$142 USD
A
Retailer 2
-
£121 GBP
$161 USD
View
A
Retailer 3
-
£135 GBP
HK$1,400 HKD
View
A
Retailer 4
-
£165 GBP
View
B+
Retailer 5
-
£220 GBP
$293 USD
View
B+
Retailer 6
-
£234 GBP
View
B+
Retailer 7
-
£234 GBP
View
B+
Retailer 8
-
£295 GBP
$393 USD
View
B
Retailer 9
-
£366 GBP
$487 USD
View
Most Expensive
B
MOH London
LG691587807 · Oct 29
£954 GBP
View
9 more retailers have this diamond
Prices start from £107 GBPSave up to £847 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 Marquise
£107 GBP