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Heart|Lab Grown|IGI

1.87ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG799644200

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799644200

Diamond specifications and retailer prices

From £1,442 GBP
$1,932 USD
As of October 31, 2026
Save £1,842 GBP (56%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,284 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.87ct lab-grown heart diamond

This 1.87ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799644200 or 799644200. Listed at 2 retailers as of October 30, 2026, with prices from £1,442 to £3,284, a £1,842 spread on the same certified stone. Brilliant Earth lists it at £3,284. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799644200
Dimensions8.63 × 7.55 × 4.81 mm
L/W Ratio1.14
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
8.63 mm7.55 mm1.87 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799644200
Side View
Table 56.0%Crown 34.8°Girdle: STK-THKPavilion 36.5°Culet: NoneDepth 55.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £3,284 GBP|Low: £966 GBP|High: £5,233 GBP|Avg: £2,574 GBP|-28.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8£966 GBP
Retailer 4£1,028 GBP
Retailer 2£1,442 GBP
Retailer 7£1,489 GBP
Retailer 10£2,096 GBP
Retailer 11£2,271 GBP
Retailer 5£2,307 GBP
Retailer 6£2,691 GBP
Brilliant Earth£3,284 GBP
Retailer 9£4,345 GBP
Retailer 3£5,233 GBP

8 data points across 11 retailers

2 retailers£1,442 GBP to £3,284 GBP

B+
Cheapest Retailer
-
£1,442 GBP
$1,932 USD
Most Expensive
B
Brilliant Earth
21411947Y · Oct 30
£3,284 GBP
$4,400 USD
View
1 more retailer has this diamond
Prices start from £1,442 GBPSave up to £1,842 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.

B+
1.87ct Heart
£1,442 GBP