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Heart|Lab Grown|IGI

1.69ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840634384

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840634384

Diamond specifications and retailer prices

From £563 GBP
$755 USD
As of October 30, 2026
Save £2,549 GBP (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,112 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.69ct lab-grown heart diamond

This 1.69ct 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 LG840634384 or 840634384. Listed at 15 retailers as of October 30, 2026, with prices from £563 to £3,112, a £2,549 spread on the same certified stone. Brilliant Earth lists it at £3,112. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.69
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634384
Dimensions7.25 × 8.20 × 4.73 mm
L/W Ratio1.13
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
7.25 mm8.20 mm1.69 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634384
Side View
Table 61.0%Crown 37.3°Girdle: MED-THKPavilion 38.1°Culet: NoneDepth 57.7%

Caratlytics Score

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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: £3,112 GBP|Low: £563 GBP|High: £4,038 GBP|Avg: £1,526 GBP|-22.9%
Brilliant Earth
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
Retailer 15
October 31, 2026
Retailer 12£563 GBP
Retailer 4£654 GBP
Retailer 5£697 GBP
Retailer 13£741 GBP
Retailer 8£784 GBP
Retailer 10£836 GBP
Retailer 2£1,001 GBP
Retailer 3£1,037 GBP
Retailer 11£1,058 GBP
Retailer 9£1,555 GBP
Retailer 7£2,144 GBP
Retailer 15£2,255 GBP
Retailer 6£2,491 GBP
Retailer 14£2,664 GBP
Brilliant Earth£3,112 GBP

3 data points across 15 retailers

15 retailers£563 GBP to £3,112 GBP

A
Cheapest Retailer
-
£563 GBP
$755 USD
A
Retailer 2
-
£654 GBP
$876 USD
View
A
Retailer 3
-
£697 GBP
$934 USD
View
Final sale: no returns
A
Retailer 4
-
£741 GBP
View
A
Retailer 5
-
£784 GBP
$1,050 USD
View
A
Retailer 6
-
£836 GBP
$1,120 USD
View
B+
Retailer 7
-
£1,001 GBP
View
B+
Retailer 8
-
£1,037 GBP
$1,390 USD
View
B+
Retailer 9
-
£1,058 GBP
$1,417 USD
View
B+
Retailer 10
-
£1,555 GBP
$2,083 USD
View
B
Retailer 11
-
£2,144 GBP
$2,873 USD
View
B
Retailer 12
-
£2,255 GBP
$3,022 USD
View
B
Retailer 13
-
£2,491 GBP
SGD 4,511 SGD
View
B
Retailer 14
-
£2,664 GBP
$3,569 USD
View
Most Expensive
B
Brilliant Earth
22348567A · Oct 30
£3,112 GBP
$4,170 USD
View
14 more retailers have this diamond
Prices start from £563 GBPSave up to £2,549 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
1.69ct Heart
£563 GBP