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Heart|Lab Grown|IGI

1.17ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG818641475

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818641475

Diamond specifications and retailer prices

From £218 GBP
$292 USD
As of November 2, 2026
Save £1,712 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,930 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.17ct lab-grown heart diamond

This 1.17ct 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 LG818641475 or 818641475. Listed at 10 retailers as of November 2, 2026, with prices from £218 to £1,930, a £1,712 spread on the same certified stone. Do Amore Diamonds lists it at £1,930. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.17
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818641475
Dimensions6.35 × 7.60 × 4.21 mm
L/W Ratio1.20
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
6.35 mm7.60 mm1.17 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818641475
Side View
Table 60.0%Crown 31.4°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 55.4%

Caratlytics Score

How it works →
A
Excellent
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: Nov 2
Current: £1,930 GBP|Low: £218 GBP|High: £2,824 GBP|Avg: £1,022 GBP|-31.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6£218 GBP
Retailer 10£252 GBP
Retailer 4£395 GBP
Retailer 11£440 GBP
Retailer 8£442 GBP
Retailer 7£829 GBP
Retailer 9£957 GBP
Retailer 2£1,192 GBP
Retailer 5£1,595 GBP
Retailer 3£1,797 GBP
Do Amore Diamonds£1,930 GBP

22 data points across 11 retailers

10 retailers£218 GBP to £1,930 GBP

A
Cheapest Retailer
-
£218 GBP
$292 USD
A
Retailer 2
-
£252 GBP
$338 USD
View
A
Retailer 3
-
£395 GBP
$530 USD
View
A
Retailer 4
-
£440 GBP
$591 USD
View
A
Retailer 5
-
£442 GBP
$593 USD
View
B
Retailer 6
-
£829 GBP
$1,112 USD
View
B+
Retailer 7
-
£957 GBP
$1,284 USD
View
B
Retailer 8
-
£1,192 GBP
View
B
Retailer 9
-
£1,595 GBP
$2,140 USD
View
Most Expensive
B
Do Amore Diamonds
27-92DD835F8 · Nov 2
£1,930 GBP
$2,590 USD
View
9 more retailers have this diamond
Prices start from £218 GBPSave up to £1,712 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
1.17ct Heart
£218 GBP