Marquise|Lab Grown|IGI

0.39ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG805673228

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805673228

Diamond specifications and retailer prices

From £86 GBP
HK$900 HKD
As of November 1, 2026
Save £138 GBP (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £554 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 0.39ct lab-grown marquise diamond

This 0.39ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805673228 or 805673228. Listed at 13 retailers as of October 31, 2026, with a 160% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.39
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle27.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805673228
Dimensions8.14 × 3.96 × 2.15 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.14 mm3.96 mm0.39 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG805673228
Side View
Table 60.0%Crown 27.3°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 54.3%

Caratlytics Score

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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: Nov 1
Current: £554 GBP|Low: £86 GBP|High: £578 GBP|Avg: £203 GBP|-3.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 27, 2026
Retailer 4£86 GBP
Retailer 6£108 GBP
Retailer 2£132 GBP
Retailer 5£144 GBP
Retailer 7£163 GBP
Retailer 8£217 GBP
Retailer 3£218 GBP
Retailer 9£224 GBP
MOH London£554 GBP

36 data points across 9 retailers

13 retailers£86 GBP to £224 GBP

Retailer 1
-
£62 GBP
$83 USD
Price last confirmed 16 days ago
Retailer 2
-
£72 GBP
$97 USD
View
Price last confirmed 17 days ago
Retailer 3
-
£82 GBP
$110 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
£86 GBP
HK$900 HKD
View
A
Retailer 5
-
£108 GBP
$145 USD
View
A
Retailer 6
-
£132 GBP
View
A
Retailer 7
-
£144 GBP
€184 EUR
View
Retailer 8
-
£163 GBP
$219 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£217 GBP
SGD 393 SGD
View
B+
Retailer 10
-
£218 GBP
View
B+
Retailer 11
-
£224 GBP
$300 USD
View
Retailer 12
-
£248 GBP
$332 USD
View
Price last confirmed 16 days ago
Most Expensive
MOH London
LG805673228 · Oct 21
£554 GBP
View
Price last confirmed 11 days ago
12 more retailers have this diamond
Prices start from £86 GBPSave up to £138 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
0.39ct Marquise
£86 GBP