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Marquise|Lab Grown|IGI

0.51ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG436074423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436074423

Diamond specifications and retailer prices

From $320 USD
As of October 31, 2026
Save $1,359 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,679 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG436074423 or 436074423. Listed at 15 retailers as of October 29, 2026, with prices from $320 to $1,679, a $1,359 spread on the same certified stone. MOH London lists it at $1,679. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074423
Dimensions7.68 × 4.24 × 2.73 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.68 mm4.24 mm0.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074423
Side View
Table 60.0%Crown 32.7°Girdle: STK-THKPavilion 42.6°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 31
Current: $1,679 USD|Low: $320 USD|High: $1,690 USD|Avg: $889 USD|+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
Retailer 17
Retailer 18
November 2, 2026
Retailer 11$320 USD
Retailer 16$336 USD
Retailer 6$375 USD
Retailer 4$390 USD
Retailer 5$417 USD
Retailer 17$417 USD
Retailer 8$570 USD
Retailer 3$673 USD
Retailer 13$752 USD
Retailer 2$756 USD
Retailer 9$794 USD
Retailer 12$1,057 USD
Retailer 14$1,222 USD
Retailer 18$1,340 USD
Retailer 7$1,523 USD
Retailer 15$1,615 USD
Retailer 10$1,674 USD
MOH London$1,679 USD

31 data points across 18 retailers

15 retailers$320 USD to $1,679 USD

A
Cheapest Retailer
-
$320 USD
A
Retailer 2
-
$336 USD
View
B+
Retailer 3
-
$375 USD
View
Final sale: no returns
B+
Retailer 4
-
$390 USD
View
B+
Retailer 5
-
$417 USD
View
Retailer 6
-
$417 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$673 USD
View
Retailer 8
-
$752 USD
€716 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$756 USD
ZAR 12,220 ZAR
View
B
Retailer 10
-
$1,057 USD
A$1,626 AUD
View
B
Retailer 11
-
$1,222 USD
View
B
Retailer 12
-
$1,340 USD
View
B
Retailer 13
-
$1,523 USD
View
B
Retailer 14
-
$1,615 USD
£1,272 GBP
View
Most Expensive
B
MOH London
LG436074423 · Oct 29
$1,679 USD
£1,322 GBP
View
14 more retailers have this diamond
Prices start from $320 USDSave up to $1,359 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
0.51ct Marquise
$320 USD