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Marquise|Lab Grown|IGI

1.02ct F IF Marquise Lab Grown Diamond

VG • F/IF • IGI LG654417382

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG654417382

Diamond specifications and retailer prices

From £416 GBP
As of November 4, 2026
3 retailers carry this diamond
Most expensive: £758 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG654417382 or 654417382. Listed at 3 retailers as of November 4, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.02
Carat
F
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654417382
Dimensions9.91 × 5.18 × 3.36 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.91 mm5.18 mm1.02 ctF / IF
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG654417382
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £758 GBP|Low: £340 GBP|High: £1,523 GBP|Avg: £869 GBP|-1.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 18, 2026
Retailer 2£416 GBP
Retailer 5£570 GBP
Rare Carat£758 GBP
Retailer 4£826 GBP
Retailer 6£1,132 GBP
Retailer 3£1,523 GBP

4 data points across 6 retailers

3 retailers

B+
Cheapest Retailer
-
£416 GBP
Retailer 2
-
£756 GBP
View
Price last confirmed 81 days ago
Most Expensive
Rare Carat
A21-18-D_l_816645818 · Oct 18
£758 GBP
$1,020 USD
View
Price last confirmed 18 days ago
2 more retailers have this diamond
Prices start from £416 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.

B+
1.02ct Marquise
£416 GBP