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Heart|Lab Grown|IGI

1.50ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG837646992

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837646992

Diamond specifications and retailer prices

From £268 GBP
$359 USD
As of October 30, 2026
Save £2,113 GBP (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,545 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.5ct lab-grown heart diamond

This 1.5ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837646992 or 837646992. Listed at 14 retailers as of October 30, 2026, with a 789% 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

1.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837646992
Dimensions7.62 × 7.06 × 4.77 mm
L/W Ratio1.08
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
7.62 mm7.06 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837646992
Side View
Table 56.0%Crown 35.3°Girdle: STK-VTKPavilion 41°Culet: NoneDepth 62.6%

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: Oct 30
Current: £2,545 GBP|Low: £263 GBP|High: £2,551 GBP|Avg: £1,110 GBP|+2.8%
Novita 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£268 GBP
Retailer 2£388 GBP
Retailer 4£478 GBP
Retailer 14£532 GBP
Retailer 7£599 GBP
Retailer 5£604 GBP
Retailer 9£855 GBP
Retailer 6£887 GBP
Retailer 12£975 GBP
Retailer 3£1,180 GBP
Retailer 10£1,442 GBP
Retailer 8£2,030 GBP
Retailer 13£2,381 GBP
Novita Diamonds£2,545 GBP

32 data points across 14 retailers

14 retailers£268 GBP to £2,381 GBP

A
Cheapest Retailer
-
£268 GBP
$359 USD
A
Retailer 2
-
£388 GBP
View
A
Retailer 3
-
£478 GBP
$640 USD
View
A
Retailer 4
-
£532 GBP
$713 USD
View
A
Retailer 5
-
£599 GBP
€765 EUR
View
A
Retailer 6
-
£604 GBP
$809 USD
View
A
Retailer 7
-
£855 GBP
A$1,762 AUD
View
B+
Retailer 8
-
£887 GBP
$1,188 USD
View
B+
Retailer 9
-
£975 GBP
$1,306 USD
View
B+
Retailer 10
-
£1,180 GBP
$1,581 USD
View
B+
Retailer 11
-
£1,442 GBP
View
B
Retailer 12
-
£2,030 GBP
$2,720 USD
View
B
Retailer 13
-
£2,381 GBP
$3,190 USD
View
Most Expensive
Novita Diamonds
cert_837646992 · Oct 8
£2,545 GBP
A$5,247 AUD
View
Price last confirmed 23 days ago
13 more retailers have this diamond
Prices start from £268 GBPSave up to £2,113 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
1.50ct Heart
£268 GBP