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Marquise|Lab Grown|IGI

0.53ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436045410

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436045410

Diamond specifications and retailer prices

From $450 AUD
$316 USD
As of November 2, 2026
Save $1,636 AUD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,247 AUD at MOH London · As of October 21, 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 top-tier cut grade and certified by IGI LG436045410 or 436045410. Listed at 12 retailers as of November 1, 2026, with a 364% 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

0.53
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045410
Dimensions8.85 × 4.10 × 2.54 mm
L/W Ratio2.16
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.85 mm4.10 mm0.53 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045410
Side View
Table 60.0%Crown 34.3°Girdle: MED-THKPavilion 41.5°Culet: NoneDepth 62.0%

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: Nov 2
Current: $2,247 AUD|Low: $431 AUD|High: $2,264 AUD|Avg: $1,099 AUD|+0.5%
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
Retailer 16
October 25, 2026
Retailer 10$450 AUD
Retailer 3$503 AUD
Retailer 8$507 AUD
Retailer 15$522 AUD
Retailer 11$527 AUD
Retailer 12$558 AUD
Retailer 16$558 AUD
Retailer 5$776 AUD
Retailer 14$907 AUD
Retailer 2$1,015 AUD
Retailer 6$1,085 AUD
Retailer 9$1,636 AUD
Retailer 13$1,794 AUD
Retailer 4$2,086 AUD
Retailer 7$2,242 AUD
MOH London$2,247 AUD

23 data points across 16 retailers

12 retailers$450 AUD to $2,086 AUD

A
Cheapest Retailer
-
$450 AUD
$316 USD
A
Retailer 2
-
$503 AUD
$353 USD
View
Final sale: no returns
B+
Retailer 3
-
$522 AUD
$367 USD
View
B+
Retailer 4
-
$527 AUD
$370 USD
View
Retailer 5
-
$558 AUD
$392 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$558 AUD
$392 USD
View
B
Retailer 7
-
$907 AUD
$637 USD
View
Retailer 8
-
$1,015 AUD
€679 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
$1,636 AUD
$1,149 USD
View
B
Retailer 10
-
$1,794 AUD
$1,260 USD
View
B
Retailer 11
-
$2,086 AUD
$1,465 USD
View
Most Expensive
MOH London
LG436045410 · Oct 21
$2,247 AUD
£1,243 GBP
View
Price last confirmed 12 days ago
11 more retailers have this diamond
Prices start from $450 AUDSave up to $1,636 AUD

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
0.53ct Marquise
$450 AUD