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Marquise|Lab Grown|IGI

0.57ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG526287683

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG526287683

Diamond specifications and retailer prices

From $136 USD
As of November 2, 2026
Save $435 USD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,407 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.57ct lab-grown marquise diamond

This 0.57ct lab-grown marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526287683 or 526287683. Listed at 13 retailers as of November 2, 2026, with a 320% 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

0.57
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526287683
Dimensions8.18 × 4.31 × 2.69 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.18 mm4.31 mm0.57 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526287683
Side View
Table 57.5%Crown 36.7°Girdle: MED-THKPavilion 38.1°Culet: NoneDepth 62.4%

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: Nov 2
Current: $1,407 USD|Low: $130 USD|High: $1,422 USD|Avg: $382 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$136 USD
Retailer 4$151 USD
Retailer 11$157 USD
Retailer 8$168 USD
Retailer 12$168 USD
Retailer 2$286 USD
Retailer 10$317 USD
Retailer 5$320 USD
Retailer 3$397 USD
Retailer 9$541 USD
Retailer 6$571 USD
MOH London$1,407 USD

44 data points across 12 retailers

13 retailers$136 USD to $571 USD

A
Cheapest Retailer
-
$136 USD
A
Retailer 2
-
$151 USD
View
Final sale: no returns
A
Retailer 3
-
$157 USD
View
A
Retailer 4
-
$168 USD
View
Retailer 5
-
$168 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$286 USD
£225 GBP
View
B+
Retailer 7
-
$317 USD
View
B+
Retailer 8
-
$320 USD
View
B+
Retailer 9
-
$346 USD
HK$2,700 HKD
View
B+
Retailer 10
-
$397 USD
View
B
Retailer 11
-
$541 USD
View
B
Retailer 12
-
$571 USD
View
Most Expensive
MOH London
LG526287683 · Oct 26
$1,407 USD
£1,108 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $136 USDSave up to $435 USD

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
0.57ct Marquise
$136 USD