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Marquise|Lab Grown|IGI

3.51ct D VS2 Marquise Lab Grown Diamond

VG • D/VS2 • IGI LG851616411

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG851616411

Diamond specifications and retailer prices

From $1,644 AUD
$1,155 USD
As of October 26, 2026
Save $2,901 AUD (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,545 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG851616411 or 851616411. Listed at 6 retailers as of October 26, 2026, with prices from $1,644 to $4,545, a $2,901 spread on the same certified stone. MOH London lists it at $4,545. 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

3.51
Carat
D
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851616411
Dimensions16.16 × 7.99 × 4.74 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.16 mm7.99 mm3.51 ctD / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851616411
Side View
Table 61.0%Crown 32.8°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 59.3%

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 26
Current: $4,545 AUD|Low: $1,644 AUD|High: $4,545 AUD|Avg: $2,646 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 28, 2026
Retailer 5$1,644 AUD
Retailer 3$1,712 AUD
Retailer 4$1,758 AUD
Retailer 2$2,208 AUD
Retailer 6$3,718 AUD
MOH London$4,545 AUD

3 data points across 6 retailers

6 retailers$1,644 AUD to $4,545 AUD

A
Cheapest Retailer
-
$1,644 AUD
$1,155 USD
A
Retailer 2
-
$1,712 AUD
£947 GBP
View
A
Retailer 3
-
$1,758 AUD
$1,235 USD
View
B+
Retailer 4
-
$2,208 AUD
$1,551 USD
View
B
Retailer 5
-
$3,718 AUD
$2,612 USD
View
Most Expensive
B
MOH London
LG851616411 · Oct 26
$4,545 AUD
£2,514 GBP
View
5 more retailers have this diamond
Prices start from $1,644 AUDSave up to $2,901 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
3.51ct Marquise
$1,644 AUD