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Marquise|Lab Grown|IGI

0.53ct H SI1 Marquise Lab Grown Diamond

VG • H/SI1 • IGI LG407941507

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG407941507

Diamond specifications and retailer prices

From £236 GBP
$316 USD
As of November 2, 2026
Save £937 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,172 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.53ct lab-grown marquise diamond

This 0.53ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407941507 or 407941507. Listed at 11 retailers as of November 1, 2026, with prices from £236 to £1,172, a £937 spread on the same certified stone. MOH London lists it at £1,172. 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

0.53
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.4°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407941507
Dimensions8.31 × 4.35 × 2.68 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
8.31 mm4.35 mm0.53 ctH / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG407941507
Side View
Table 59.5%Crown 33.4°Girdle: THN-STKPavilion 42.3°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,172 GBP|Low: £226 GBP|High: £1,187 GBP|Avg: £558 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
November 1, 2026
Retailer 9£236 GBP
Retailer 2£254 GBP
Retailer 3£263 GBP
Retailer 13£274 GBP
Retailer 10£293 GBP
Retailer 14£293 GBP
Retailer 4£407 GBP
Retailer 12£475 GBP
Retailer 7£536 GBP
Retailer 5£569 GBP
Retailer 8£858 GBP
Retailer 11£940 GBP
MOH London£1,172 GBP
Retailer 6£1,175 GBP

27 data points across 14 retailers

11 retailers£236 GBP to £1,172 GBP

B+
Cheapest Retailer
-
£236 GBP
$316 USD
B+
Retailer 2
-
£254 GBP
$340 USD
View
B+
Retailer 3
-
£263 GBP
$353 USD
View
Final sale: no returns
B+
Retailer 4
-
£274 GBP
$367 USD
View
Retailer 5
-
£293 GBP
$392 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£293 GBP
$392 USD
View
B
Retailer 7
-
£475 GBP
$637 USD
View
B
Retailer 8
-
£536 GBP
€684 EUR
View
B
Retailer 9
-
£858 GBP
$1,149 USD
View
B
Retailer 10
-
£940 GBP
$1,260 USD
View
Most Expensive
B
MOH London
LG407941507 · Nov 1
£1,172 GBP
View
10 more retailers have this diamond
Prices start from £236 GBPSave up to £937 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+
0.53ct Marquise
£236 GBP