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Marquise|Lab Grown|IGI

0.71ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG659454454

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG659454454

Diamond specifications and retailer prices

From £69 GBP
$92 USD
As of November 2, 2026
Save £559 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £627 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.71ct lab-grown marquise diamond

This 0.71ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG659454454 or 659454454. Listed at 12 retailers as of October 29, 2026, with prices from £69 to £627, a £559 spread on the same certified stone. MOH London lists it at £627. 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

0.71
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659454454
Dimensions9.10 × 4.65 × 2.95 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.10 mm4.65 mm0.71 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659454454
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.4%

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: Nov 2
Current: £627 GBP|Low: £69 GBP|High: £627 GBP|Avg: £219 GBP
MOH London
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
November 2, 2026
Retailer 2£69 GBP
Retailer 9£79 GBP
Retailer 10£90 GBP
Retailer 15£105 GBP
Retailer 14£142 GBP
Retailer 5£156 GBP
Retailer 8£159 GBP
Retailer 4£177 GBP
Retailer 3£185 GBP
Retailer 13£264 GBP
Retailer 11£273 GBP
Retailer 7£286 GBP
Retailer 12£305 GBP
Retailer 6£417 GBP
MOH London£627 GBP

6 data points across 15 retailers

12 retailers£69 GBP to £627 GBP

A
Cheapest Retailer
-
£69 GBP
$92 USD
A
Retailer 2
-
£79 GBP
$106 USD
View
A
Retailer 3
-
£90 GBP
$121 USD
View
A
Retailer 4
-
£105 GBP
HK$1,100 HKD
View
A
Retailer 5
-
£142 GBP
$190 USD
View
A
Retailer 6
-
£159 GBP
View
A
Retailer 7
-
£177 GBP
$237 USD
View
A
Retailer 8
-
£185 GBP
View
B+
Retailer 9
-
£264 GBP
$354 USD
View
B+
Retailer 10
-
£273 GBP
$366 USD
View
B+
Retailer 11
-
£305 GBP
$408 USD
View
Most Expensive
B
MOH London
LG659454454 · Oct 29
£627 GBP
View
11 more retailers have this diamond
Prices start from £69 GBPSave up to £559 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
0.71ct Marquise
£69 GBP