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Heart|Lab Grown|IGI

1.61ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG811639518

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811639518

Diamond specifications and retailer prices

From £466 GBP
$624 USD
As of October 30, 2026
Save £3,669 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,135 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.61ct lab-grown heart diamond

This 1.61ct 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 LG811639518 or 811639518. Listed at 12 retailers as of October 29, 2026, with prices from £466 to £4,135, a £3,669 spread on the same certified stone. Do Amore Diamonds lists it at £4,135. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811639518
Dimensions7.86 × 7.56 × 4.57 mm
L/W Ratio1.04
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
7.86 mm7.56 mm1.61 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811639518
Side View
Table 56.0%Crown 34.5°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 58.1%

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: £4,135 GBP|Low: £466 GBP|High: £4,329 GBP|Avg: £1,596 GBP|-4.5%
Do Amore Diamonds
Retailer 2
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Retailer 11
Retailer 12
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Retailer 17
October 30, 2026
Retailer 3£466 GBP
Retailer 7£485 GBP
Retailer 13£522 GBP
Retailer 6£523 GBP
Retailer 10£676 GBP
Retailer 17£744 GBP
Retailer 4£884 GBP
Retailer 11£884 GBP
Retailer 5£1,165 GBP
Retailer 16£1,336 GBP
Retailer 8£1,371 GBP
Retailer 15£1,677 GBP
Retailer 12£2,346 GBP
Retailer 14£2,721 GBP
Retailer 2£2,814 GBP
Retailer 9£2,966 GBP
Do Amore Diamonds£4,135 GBP

22 data points across 17 retailers

12 retailers£466 GBP to £4,135 GBP

A
Cheapest Retailer
-
£466 GBP
$624 USD
A
Retailer 2
-
£522 GBP
$699 USD
View
A
Retailer 3
-
£676 GBP
View
A
Retailer 4
-
£744 GBP
$997 USD
View
A
Retailer 5
-
£884 GBP
$1,184 USD
View
B+
Retailer 6
-
£884 GBP
$1,185 USD
View
B+
Retailer 7
-
£1,336 GBP
$1,790 USD
View
B+
Retailer 8
-
£1,677 GBP
$2,247 USD
View
B+
Retailer 9
-
£2,346 GBP
View
B
Retailer 10
-
£2,721 GBP
$3,646 USD
View
B
Retailer 11
-
£2,814 GBP
$3,770 USD
View
Most Expensive
B
Do Amore Diamonds
27-5ACCC7C9F · Oct 29
£4,135 GBP
$5,540 USD
View
11 more retailers have this diamond
Prices start from £466 GBPSave up to £3,669 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
1.61ct Heart
£466 GBP