CaratHunter
Plans
Heart|Lab Grown|IGI

1.31ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG800676805

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG800676805

Diamond specifications and retailer prices

From £241 GBP
$324 USD
As of November 2, 2026
Save £1,897 GBP (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,139 GBP at Do Amore Diamonds · As of November 2, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800676805 or 800676805. Listed at 14 retailers as of November 2, 2026, with prices from £241 to £2,139, a £1,897 spread on the same certified stone. Do Amore Diamonds lists it at £2,139. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676805
Dimensions7.01 × 7.36 × 4.48 mm
L/W Ratio1.05
Girdle conditionFaceted
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
7.01 mm7.36 mm1.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676805
Side View
Table 60.0%Crown 34.9°Girdle: MED-THKPavilion 41°Culet: NoneDepth 60.9%

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: £2,139 GBP|Low: £241 GBP|High: £3,145 GBP|Avg: £980 GBP|-32.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 11£241 GBP
Retailer 4£279 GBP
Retailer 6£396 GBP
Retailer 12£418 GBP
Retailer 8£440 GBP
Retailer 14£485 GBP
Retailer 5£541 GBP
Retailer 7£559 GBP
Retailer 10£755 GBP
Retailer 13£877 GBP
Retailer 3£1,061 GBP
Retailer 2£1,290 GBP
Retailer 9£2,019 GBP
Do Amore Diamonds£2,139 GBP

34 data points across 14 retailers

14 retailers£241 GBP to £2,139 GBP

A
Cheapest Retailer
-
£241 GBP
$324 USD
A
Retailer 2
-
£279 GBP
$375 USD
View
A
Retailer 3
-
£396 GBP
$532 USD
View
Final sale: no returns
A
Retailer 4
-
£418 GBP
$561 USD
View
A
Retailer 5
-
£440 GBP
$590 USD
View
A
Retailer 6
-
£485 GBP
$651 USD
View
A
Retailer 7
-
£541 GBP
$726 USD
View
A
Retailer 8
-
£559 GBP
€714 EUR
View
B+
Retailer 9
-
£755 GBP
A$1,558 AUD
View
B+
Retailer 10
-
£877 GBP
$1,177 USD
View
B+
Retailer 11
-
£1,061 GBP
$1,424 USD
View
B+
Retailer 12
-
£1,290 GBP
View
B
Retailer 13
-
£2,019 GBP
$2,710 USD
View
Most Expensive
B
Do Amore Diamonds
27-D99053B2D · Nov 2
£2,139 GBP
$2,870 USD
View
13 more retailers have this diamond
Prices start from £241 GBPSave up to £1,897 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
£241 GBP