Marquise|Lab Grown|IGI

1.51ct G VVS1 Marquise Lab Grown Diamond

VG • G/VVS1 • IGI LG850685518

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850685518

Diamond specifications and retailer prices

From $491 USD
As of November 1, 2026
Save $671 USD (58%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,162 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG850685518 or 850685518. Listed at 6 retailers as of November 1, 2026, with prices from $491 to $1,162, a $671 spread on the same certified stone. MOH London lists it at $1,162. 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

1.51
Carat
G
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850685518
Dimensions11.47 × 6.04 × 3.82 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.47 mm6.04 mm1.51 ctG / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850685518
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.2%

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 1
Current: $1,162 USD|Low: $491 USD|High: $1,162 USD|Avg: $768 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 3, 2026
Retailer 5$491 USD
Retailer 2$548 USD
Retailer 4$637 USD
Retailer 6$984 USD
Retailer 3$1,070 USD
MOH London$1,162 USD

6 data points across 6 retailers

6 retailers$491 USD to $1,162 USD

A
Cheapest Retailer
-
$491 USD
A
Retailer 2
-
$548 USD
£431 GBP
View
B+
Retailer 3
-
$637 USD
View
B+
Retailer 4
-
$984 USD
View
B
Retailer 5
-
$1,070 USD
View
Most Expensive
B
MOH London
LG850685518 · Nov 2
$1,162 USD
£915 GBP
View
5 more retailers have this diamond
Prices start from $491 USDSave up to $671 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
1.51ct Marquise
$491 USD