CaratHunter
Plans
Marquise|Lab Grown|IGI

0.31ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG795615043

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG795615043

Diamond specifications and retailer prices

From $69 USD
As of October 30, 2026
Save $562 USD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $631 USD at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG795615043 or 795615043. Listed at 11 retailers as of October 30, 2026, with prices from $69 to $631, a $562 spread on the same certified stone. MOH London lists it at $631. 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

0.31
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795615043
Dimensions7.03 × 3.71 × 2.16 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.03 mm3.71 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795615043
Side View
Table 63.0%Crown 33°Girdle: THN-MEDPavilion 39.8°Culet: NoneDepth 58.2%

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: Oct 30
Current: $631 USD|Low: $32 USD|High: $639 USD|Avg: $229 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8$32 USD
Retailer 5$69 USD
Retailer 2$153 USD
Retailer 4$177 USD
Retailer 6$197 USD
Retailer 3$220 USD
Retailer 7$313 USD
MOH London$631 USD

43 data points across 8 retailers

11 retailers$69 USD to $631 USD

A
Cheapest Retailer
-
$69 USD
A
Retailer 2
-
$80 USD
View
A
Retailer 3
-
$91 USD
View
Retailer 4
-
$91 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$153 USD
£120 GBP
View
B+
Retailer 6
-
$197 USD
View
B+
Retailer 7
-
$220 USD
£174 GBP
View
B+
Retailer 8
-
$276 USD
View
B
Retailer 9
-
$313 USD
View
B
Retailer 10
-
$337 USD
View
Most Expensive
B
MOH London
LG795615043 · Nov 1
$631 USD
£497 GBP
View
10 more retailers have this diamond
Prices start from $69 USDSave up to $562 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
0.31ct Marquise
$69 USD