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Heart|Lab Grown|IGI

1.31ct G VVS1 Heart Lab Grown Diamond

ID • G/VVS1 • IGI LG593378320

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG593378320

Diamond specifications and retailer prices

From £161 GBP
As of November 4, 2026
Save £1,221 GBP (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,382 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG593378320 or 593378320. Listed at 15 retailers as of November 4, 2026, with prices from £161 to £1,382, a £1,221 spread on the same certified stone. Do Amore Diamonds lists it at £1,382. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593378320
Dimensions7.73 × 6.56 × 4.43 mm
L/W Ratio1.18
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
7.73 mm6.56 mm1.31 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593378320
Side View
Table 59.0%Crown 33.9°Girdle: THN-MEDPavilion 39.3°Culet: NoneDepth 57.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £365 GBP|Low: £161 GBP|High: £799 GBP|Avg: £397 GBP|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 7£161 GBP
Retailer 6£242 GBP
Retailer 1£365 GBP
Retailer 5£374 GBP
Retailer 8£406 GBP
Retailer 4£482 GBP
Retailer 3£721 GBP
Retailer 2£788 GBP

41 data points across 8 retailers

15 retailers£161 GBP to £1,382 GBP

Retailer 1
-
£138 GBP
Price last confirmed 34 days ago
A
Retailer 2
-
£161 GBP
View
Final sale: no returns
Retailer 3
-
£167 GBP
View
Price last confirmed 37 days ago
Retailer 4
-
£179 GBP
View
Price last confirmed 33 days ago
B+
Retailer 5
-
£242 GBP
View
B+
Retailer 6
-
£365 GBP
View
A
Retailer 7
-
£374 GBP
View
B+
Retailer 8
-
£406 GBP
View
B+
Retailer 9
-
£482 GBP
View
Retailer 10
-
£635 GBP
View
Price last confirmed 36 days ago
B
Retailer 11
-
£721 GBP
View
B
Retailer 12
-
£767 GBP
View
B
Retailer 13
-
£788 GBP
View
B
Retailer 14
-
£1,205 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0B8D5CA87 · Nov 4
£1,382 GBP
$1,860 USD
View
14 more retailers have this diamond
Prices start from £161 GBPSave up to £1,221 GBP

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
£161 GBP