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Heart|Lab Grown|IGI

1.61ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG745505082

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG745505082

Diamond specifications and retailer prices

From £225 GBP
$301 USD
As of October 30, 2026
Save £2,619 GBP (92%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,844 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG745505082 or 745505082. Listed at 12 retailers as of October 30, 2026, with prices from £225 to £2,844, a £2,619 spread on the same certified stone. Brilliant Earth lists it at £2,844. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745505082
Dimensions7.04 × 8.31 × 4.69 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
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
7.04 mm8.31 mm1.61 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745505082
Side View
Table 58.0%Crown 34.6°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 56.4%

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: £2,844 GBP|Low: £225 GBP|High: £3,567 GBP|Avg: £1,032 GBP|-20.3%
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 30, 2026
Retailer 3£225 GBP
Retailer 13£260 GBP
Retailer 4£298 GBP
Retailer 9£444 GBP
Retailer 12£454 GBP
Retailer 11£475 GBP
Retailer 6£649 GBP
Retailer 5£655 GBP
Retailer 8£716 GBP
Retailer 10£761 GBP
Retailer 15£987 GBP
Retailer 2£1,237 GBP
Retailer 7£1,431 GBP
Retailer 14£1,993 GBP
Brilliant Earth£2,844 GBP

25 data points across 15 retailers

12 retailers£225 GBP to £2,844 GBP

A
Cheapest Retailer
-
£225 GBP
$301 USD
A
Retailer 2
-
£260 GBP
$349 USD
View
A
Retailer 3
-
£298 GBP
$399 USD
View
Final sale: no returns
A
Retailer 4
-
£444 GBP
$595 USD
View
A
Retailer 5
-
£454 GBP
$608 USD
View
A
Retailer 6
-
£475 GBP
$636 USD
View
A
Retailer 7
-
£716 GBP
A$1,475 AUD
View
A
Retailer 8
-
£761 GBP
$1,020 USD
View
B+
Retailer 9
-
£987 GBP
$1,323 USD
View
B+
Retailer 10
-
£1,237 GBP
View
B
Retailer 11
-
£1,993 GBP
$2,670 USD
View
Most Expensive
B
Brilliant Earth
21415375Y · Oct 31
£2,844 GBP
$3,810 USD
View
11 more retailers have this diamond
Prices start from £225 GBPSave up to £2,619 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
£225 GBP