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Heart|Lab Grown|IGI

1.90ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818653771

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818653771

Diamond specifications and retailer prices

From £608 GBP
$814 USD
As of October 30, 2026
Save £3,385 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,993 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 1.9ct lab-grown heart diamond

This 1.9ct 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 LG818653771 or 818653771. Listed at 19 retailers as of October 30, 2026, with prices from £608 to £3,993, a £3,385 spread on the same certified stone. With Clarity lists it at £3,993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.90
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653771
Dimensions8.48 × 7.46 × 4.97 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
8.48 mm7.46 mm1.90 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653771
Side View
Table 59.0%Crown 37.3°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 58.6%

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: £2,317 GBP|Low: £608 GBP|High: £4,553 GBP|Avg: £1,700 GBP|-24.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
Retailer 17
Retailer 18
With Clarity
October 30, 2026
Retailer 6£608 GBP
Retailer 3£661 GBP
Retailer 17£705 GBP
Retailer 10£732 GBP
Retailer 8£784 GBP
Retailer 15£836 GBP
Retailer 5£890 GBP
Retailer 12£1,081 GBP
Retailer 16£1,136 GBP
Retailer 2£1,271 GBP
Retailer 14£1,295 GBP
Retailer 7£1,474 GBP
Retailer 18£1,981 GBP
Retailer 1£2,317 GBP
Retailer 4£2,438 GBP
Retailer 13£2,655 GBP
Retailer 9£2,791 GBP
Retailer 11£3,187 GBP
With Clarity£3,993 GBP

35 data points across 19 retailers

19 retailers£608 GBP to £3,993 GBP

A
Cheapest Retailer
-
£608 GBP
$814 USD
A
Retailer 2
-
£661 GBP
$885 USD
View
A
Retailer 3
-
£705 GBP
$944 USD
View
Retailer 4
-
£732 GBP
$981 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£784 GBP
$1,050 USD
View
Final sale: no returns
A
Retailer 6
-
£836 GBP
$1,120 USD
View
A
Retailer 7
-
£890 GBP
$1,193 USD
View
A
Retailer 8
-
£1,081 GBP
View
B+
Retailer 9
-
£1,136 GBP
$1,522 USD
View
B+
Retailer 10
-
£1,271 GBP
$1,703 USD
View
B+
Retailer 11
-
£1,295 GBP
ZAR 28,032 ZAR
View
B+
Retailer 12
-
£1,474 GBP
$1,975 USD
View
B
Retailer 13
-
£1,981 GBP
$2,654 USD
View
B+
Retailer 14
-
£2,317 GBP
$3,105 USD
View
B
Retailer 15
-
£2,438 GBP
$3,267 USD
View
B+
Retailer 16
-
£2,655 GBP
View
B
Retailer 17
-
£2,791 GBP
SGD 5,053 SGD
View
B
Retailer 18
-
£3,187 GBP
$4,270 USD
View
Most Expensive
B
With Clarity
818653771 · Oct 31
£3,993 GBP
$5,350 USD
View
18 more retailers have this diamond
Prices start from £608 GBPSave up to £3,385 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
1.90ct Heart
£608 GBP