Heart|Lab Grown|IGI

1.60ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG843604948

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843604948

Diamond specifications and retailer prices

From £413 GBP
As of October 30, 2026
Save £2,445 GBP (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,858 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.6ct lab-grown heart diamond

This 1.6ct 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 LG843604948 or 843604948. Listed at 11 retailers as of October 30, 2026, with prices from £413 to £2,858, a £2,445 spread on the same certified stone. Brilliant Earth lists it at £2,858. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843604948
Dimensions7.81 × 7.49 × 4.70 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
7.81 mm7.49 mm1.60 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843604948
Side View
Table 59.0%Crown 34°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,858 GBP|Low: £412 GBP|High: £3,441 GBP|Avg: £1,226 GBP|-16.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4£413 GBP
Retailer 6£508 GBP
Retailer 9£562 GBP
Retailer 2£634 GBP
Retailer 3£680 GBP
Retailer 5£908 GBP
Retailer 11£946 GBP
Retailer 7£990 GBP
Retailer 10£1,433 GBP
Retailer 8£2,530 GBP
Brilliant Earth£2,858 GBP

13 data points across 11 retailers

11 retailers£413 GBP to £2,858 GBP

A+
Cheapest Retailer
-
£413 GBP
A
Retailer 2
-
£508 GBP
$680 USD
View
A
Retailer 3
-
£562 GBP
$753 USD
View
A
Retailer 4
-
£634 GBP
€809 EUR
View
A
Retailer 5
-
£680 GBP
$911 USD
View
B+
Retailer 6
-
£908 GBP
A$1,871 AUD
View
B+
Retailer 7
-
£946 GBP
$1,267 USD
View
B+
Retailer 8
-
£990 GBP
$1,327 USD
View
B+
Retailer 9
-
£1,433 GBP
View
B
Retailer 10
-
£2,530 GBP
$3,390 USD
View
Most Expensive
B
Brilliant Earth
22165649Y · Oct 31
£2,858 GBP
$3,830 USD
View
10 more retailers have this diamond
Prices start from £413 GBPSave up to £2,445 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+
1.60ct Heart
£413 GBP