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Marquise|Lab Grown|IGI

0.51ct H VS1 Marquise Lab Grown Diamond

ID • H/VS1 • IGI LG436045412

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436045412

Diamond specifications and retailer prices

From $336 USD
As of November 2, 2026
Save $1,334 USD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,670 USD at MOH London · As of November 1, 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 LG436045412 or 436045412. Listed at 14 retailers as of November 1, 2026, with prices from $336 to $1,670, a $1,334 spread on the same certified stone. MOH London lists it at $1,670. 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
SymmetryVery Good
FluorescenceNone
Crown angle32.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045412
Dimensions7.86 × 4.35 × 2.61 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.86 mm4.35 mm0.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045412
Side View
Table 62.5%Crown 32.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.0%

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: $1,670 USD|Low: $323 USD|High: $1,690 USD|Avg: $880 USD
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
November 2, 2026
Retailer 12$336 USD
Retailer 13$370 USD
Retailer 4$375 USD
Retailer 17$390 USD
Retailer 3$417 USD
Retailer 14$417 USD
Retailer 6$480 USD
Retailer 16$673 USD
Retailer 10$752 USD
Retailer 2$756 USD
Retailer 7$794 USD
Retailer 11$1,222 USD
Retailer 15$1,340 USD
Retailer 5$1,523 USD
Retailer 8$1,615 USD
MOH London$1,670 USD
Retailer 9$1,674 USD

29 data points across 17 retailers

14 retailers$336 USD to $1,670 USD

A
Cheapest Retailer
-
$336 USD
B+
Retailer 2
-
$370 USD
View
B+
Retailer 3
-
$375 USD
View
Final sale: no returns
B+
Retailer 4
-
$390 USD
View
Retailer 5
-
$417 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$417 USD
View
B
Retailer 7
-
$673 USD
View
Retailer 8
-
$752 USD
€716 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
$756 USD
ZAR 12,220 ZAR
View
B
Retailer 10
-
$1,222 USD
View
B
Retailer 11
-
$1,340 USD
View
B
Retailer 12
-
$1,523 USD
View
B
Retailer 13
-
$1,615 USD
£1,272 GBP
View
Most Expensive
B
MOH London
LG436045412 · Nov 1
$1,670 USD
£1,315 GBP
View
13 more retailers have this diamond
Prices start from $336 USDSave up to $1,334 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
$336 USD