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Heart|Lab Grown|IGI

1.16ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681473

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681473

Diamond specifications and retailer prices

From £216 GBP
$290 USD
As of November 2, 2026
Save £1,699 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,915 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.16ct lab-grown heart diamond

This 1.16ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681473 or 818681473. Listed at 11 retailers as of November 2, 2026, with prices from £216 to £1,915, a £1,699 spread on the same certified stone. Do Amore Diamonds lists it at £1,915. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.16
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681473
Dimensions6.40 × 7.18 × 4.40 mm
L/W Ratio1.12
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
6.40 mm7.18 mm1.16 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681473
Side View
Table 56.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.3%

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: Nov 2
Current: £1,915 GBP|Low: £216 GBP|High: £2,802 GBP|Avg: £994 GBP|-31.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7£216 GBP
Retailer 11£250 GBP
Retailer 5£391 GBP
Retailer 3£434 GBP
Retailer 9£440 GBP
Retailer 12£677 GBP
Retailer 8£822 GBP
Retailer 10£949 GBP
Retailer 2£1,183 GBP
Retailer 6£1,572 GBP
Retailer 4£1,782 GBP
Do Amore Diamonds£1,915 GBP

25 data points across 12 retailers

11 retailers£216 GBP to £1,915 GBP

A
Cheapest Retailer
-
£216 GBP
$290 USD
A
Retailer 2
-
£250 GBP
$336 USD
View
A
Retailer 3
-
£391 GBP
$525 USD
View
A
Retailer 4
-
£434 GBP
$582 USD
View
A
Retailer 5
-
£440 GBP
$591 USD
View
B+
Retailer 6
-
£677 GBP
A$1,398 AUD
View
B
Retailer 7
-
£822 GBP
$1,103 USD
View
B+
Retailer 8
-
£949 GBP
$1,274 USD
View
B+
Retailer 9
-
£1,183 GBP
View
B
Retailer 10
-
£1,572 GBP
$2,110 USD
View
Most Expensive
B
Do Amore Diamonds
27-E1364BCC6 · Nov 2
£1,915 GBP
$2,570 USD
View
10 more retailers have this diamond
Prices start from £216 GBPSave up to £1,699 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
1.16ct Heart
£216 GBP