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Heart|Lab Grown|IGI

5.91ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG846635724

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846635724

Diamond specifications and retailer prices

From $804 USD
As of November 1, 2026
Save $3,446 USD (81%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,250 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.91ct lab-grown heart diamond

This 5.91ct lab-grown heart sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846635724 or 846635724. Listed at 3 retailers as of November 1, 2026, with prices from $804 to $4,250, a $3,446 spread on the same certified stone. Brilliant Earth lists it at $4,250. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.91
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846635724
Dimensions10.68 × 12.60 × 7.39 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.68 mm12.60 mm5.91 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846635724
Side View
Table 60.0%Crown 35.7°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $4,250 USD|Low: $804 USD|High: $8,020 USD|Avg: $3,416 USD|-47.0%
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$804 USD
Retailer 2$1,381 USD
Brilliant Earth$4,250 USD

17 data points across 3 retailers

3 retailers$804 USD to $4,250 USD

A
Cheapest Retailer
-
$804 USD
Final sale: no returns
A
Retailer 2
-
$1,381 USD
£1,088 GBP
View
Most Expensive
B
Brilliant Earth
22150720A · Nov 2
$4,250 USD
View
2 more retailers have this diamond
Prices start from $804 USDSave up to $3,446 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
5.91ct Heart
$804 USD