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Heart|Lab Grown|IGI

1.31ct F VS1 Heart Lab Grown Diamond

F/VS1 • IGI LG594338174

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG594338174

Diamond specifications and retailer prices

From $259 USD
As of November 4, 2026
Save $968 USD (79%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,227 USD at Michael Trio · As of November 4, 2026
View at Michael Trio

About this 1.31ct lab-grown heart diamond

This 1.31ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG594338174 or 594338174. Listed at 6 retailers as of November 4, 2026, with prices from $259 to $1,227, a $968 spread on the same certified stone. Michael Trio lists it at $1,227. 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

1.31
Carat
F
Color
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594338174
Dimensions6.64 × 7.46 × 4.54 mm
L/W Ratio1.12
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
6.64 mm7.46 mm1.31 ctF / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594338174
Side View
Table 61.0%Crown 39.8°Girdle: THN-STKPavilion 40.2°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,227 USD|Low: $259 USD|High: $1,227 USD|Avg: $619 USD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$259 USD
Retailer 5$408 USD
Retailer 6$422 USD
Retailer 2$622 USD
Retailer 3$772 USD
Michael Trio$1,227 USD

10 data points across 6 retailers

6 retailers$259 USD to $1,227 USD

A
Cheapest Retailer
-
$259 USD
Final sale: no returns
B+
Retailer 2
-
$408 USD
View
B+
Retailer 3
-
$422 USD
View
B
Retailer 4
-
$622 USD
View
Retailer 5
-
$772 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Michael Trio
2115247079 · Nov 4
$1,227 USD
SGD 1,658 SGD
View
5 more retailers have this diamond
Prices start from $259 USDSave up to $968 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
1.31ct Heart
$259 USD