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Marquise|Lab Grown|IGI

1.31ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG508156280

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG508156280

Diamond specifications and retailer prices

From $1,000 USD
As of October 31, 2026
Save $917 USD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,512 USD at Friendly Diamonds · As of October 31, 2026
View at Friendly Diamonds

About this 1.31ct lab-grown marquise diamond

This 1.31ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508156280 or 508156280. Listed at 14 retailers as of October 31, 2026, with a 92% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.7°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156280
Dimensions11.11 × 5.79 × 3.51 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.11 mm5.79 mm1.31 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG508156280
Side View
Table 64.0%Crown 31.7°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,734 USD|Low: $995 USD|High: $4,126 USD|Avg: $1,867 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5$1,000 USD
Retailer 6$1,036 USD
Retailer 10$1,128 USD
Retailer 11$1,161 USD
Retailer 7$1,202 USD
Retailer 3$1,375 USD
Retailer 1$1,734 USD
Retailer 8$1,917 USD
Retailer 9$2,253 USD
Retailer 2$3,322 USD
Retailer 4$4,083 USD

43 data points across 11 retailers

14 retailers$1,000 USD to $1,917 USD

B+
Cheapest Retailer
-
$1,000 USD
B
Retailer 2
-
$1,036 USD
View
B
Retailer 3
-
$1,128 USD
View
B
Retailer 4
-
$1,161 USD
View
Final sale: no returns
Retailer 5
-
$1,202 USD
View
Price last confirmed 15 days ago
B
Retailer 6
-
$1,202 USD
View
B
Retailer 7
-
$1,375 USD
View
B
Retailer 8
-
$1,734 USD
£1,365 GBP
View
B
Retailer 9
-
$1,917 USD
View
Retailer 10
-
$2,253 USD
View
Price under review
Most Expensive
Friendly Diamonds
2231555 · Oct 31
$2,512 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,000 USDSave up to $917 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.

B+
1.31ct Marquise
$1,000 USD