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Marquise|Lab Grown|IGI

2.31ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG847685517

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847685517

Diamond specifications and retailer prices

From $740 USD
As of November 2, 2026
Save $3,360 USD (82%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,100 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 2.31ct lab-grown marquise diamond

This 2.31ct lab-grown marquise sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG847685517 or 847685517. Listed at 7 retailers as of October 31, 2026, with prices from $740 to $4,100, a $3,360 spread on the same certified stone. Do Amore Diamonds lists it at $4,100. 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

2.31
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847685517
Dimensions13.63 × 6.93 × 4.26 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.63 mm6.93 mm2.31 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847685517
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.5%

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: $4,100 USD|Low: $740 USD|High: $4,100 USD|Avg: $1,570 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$740 USD
Retailer 5$795 USD
Retailer 7$872 USD
Retailer 4$890 USD
Retailer 2$1,136 USD
Retailer 3$3,155 USD
Do Amore Diamonds$4,100 USD

4 data points across 7 retailers

7 retailers$740 USD to $4,100 USD

A
Cheapest Retailer
-
$740 USD
B+
Retailer 2
-
$795 USD
View
B+
Retailer 3
-
$872 USD
View
B+
Retailer 4
-
$890 USD
£700 GBP
View
B+
Retailer 5
-
$1,136 USD
£894 GBP
View
B
Retailer 6
-
$3,155 USD
£2,484 GBP
View
Most Expensive
B
Do Amore Diamonds
36-2133080 · Oct 31
$4,100 USD
View
6 more retailers have this diamond
Prices start from $740 USDSave up to $3,360 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
2.31ct Marquise
$740 USD