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Marquise|Lab Grown|IGI

0.87ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG662486040

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG662486040

Diamond specifications and retailer prices

From £79 GBP
$106 USD
As of October 30, 2026
Save £272 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £352 GBP at Friendly Diamonds · As of October 31, 2026
View at Friendly Diamonds

About this 0.87ct lab-grown marquise diamond

This 0.87ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG662486040 or 662486040. Listed at 13 retailers as of October 30, 2026, with prices from £79 to £352, a £272 spread on the same certified stone. Friendly Diamonds lists it at £352. 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

0.87
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662486040
Dimensions9.96 × 4.91 × 3.11 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.96 mm4.91 mm0.87 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662486040
Side View
Table 62.0%Crown 35.8°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £352 GBP|Low: £79 GBP|High: £590 GBP|Avg: £236 GBP
Friendly 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
Retailer 15
Retailer 16
November 1, 2026
Retailer 12£79 GBP
Retailer 15£92 GBP
Retailer 10£104 GBP
Retailer 3£115 GBP
Retailer 2£142 GBP
Retailer 16£149 GBP
Retailer 14£181 GBP
Retailer 9£194 GBP
Retailer 4£197 GBP
Retailer 5£202 GBP
Retailer 6£263 GBP
Retailer 13£281 GBP
Retailer 11£316 GBP
Friendly Diamonds£352 GBP
Retailer 8£499 GBP
Retailer 7£590 GBP

5 data points across 16 retailers

13 retailers£79 GBP to £352 GBP

A
Cheapest Retailer
-
£79 GBP
$106 USD
A
Retailer 2
-
£92 GBP
$123 USD
View
A
Retailer 3
-
£104 GBP
$140 USD
View
A
Retailer 4
-
£115 GBP
HK$1,200 HKD
View
A
Retailer 5
-
£142 GBP
View
A
Retailer 6
-
£149 GBP
$200 USD
View
A
Retailer 7
-
£181 GBP
$243 USD
View
A
Retailer 8
-
£194 GBP
View
A
Retailer 9
-
£197 GBP
$264 USD
View
A
Retailer 10
-
£202 GBP
View
B+
Retailer 11
-
£281 GBP
$376 USD
View
B
Retailer 12
-
£316 GBP
$423 USD
View
Most Expensive
B
Friendly Diamonds
6559970 · Oct 31
£352 GBP
$471 USD
View
12 more retailers have this diamond
Prices start from £79 GBPSave up to £272 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
0.87ct Marquise
£79 GBP