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Marquise|Lab Grown|IGI

1.02ct E FL Marquise Lab Grown Diamond

VG • E/FL • IGI LG818653983

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818653983

Diamond specifications and retailer prices

From £325 GBP
$433 USD
As of October 30, 2026
Save £1,162 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,487 GBP at Rare Carat · As of October 28, 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818653983 or 818653983. Listed at 8 retailers as of October 28, 2026, with prices from £325 to £1,487, a £1,162 spread on the same certified stone. Rare Carat lists it at £1,487. 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
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653983
Dimensions10.56 × 5.23 × 3.37 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.56 mm5.23 mm1.02 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653983
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,487 GBP|Low: £183 GBP|High: £1,498 GBP|Avg: £697 GBP|-0.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5£183 GBP
Retailer 2£325 GBP
Retailer 12£432 GBP
Retailer 4£456 GBP
Retailer 13£471 GBP
Retailer 11£491 GBP
Retailer 10£621 GBP
Retailer 8£668 GBP
Retailer 7£833 GBP
Retailer 3£951 GBP
Retailer 9£1,329 GBP
Retailer 6£1,449 GBP
Rare Carat£1,487 GBP

11 data points across 13 retailers

8 retailers£325 GBP to £1,487 GBP

A
Cheapest Retailer
-
£325 GBP
$433 USD
Retailer 2
-
£471 GBP
ZAR 10,128 ZAR
View
Price last confirmed 49 days ago
B+
Retailer 3
-
£621 GBP
$827 USD
View
B+
Retailer 4
-
£668 GBP
$889 USD
View
B
Retailer 5
-
£833 GBP
View
B
Retailer 6
-
£1,329 GBP
$1,770 USD
View
B
Retailer 7
-
£1,449 GBP
$1,930 USD
View
Most Expensive
B
Rare Carat
PD-234695 · Oct 28
£1,487 GBP
$1,980 USD
View
7 more retailers have this diamond
Prices start from £325 GBPSave up to £1,162 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
1.02ct Marquise
£325 GBP