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Heart|Lab Grown|IGI

1.77ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818659447

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818659447

Diamond specifications and retailer prices

From £964 GBP
$1,291 USD
As of October 28, 2026
Save £3,567 GBP (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,530 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.77ct lab-grown heart diamond

This 1.77ct 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 LG818659447 or 818659447. Listed at 7 retailers as of October 28, 2026, with prices from £964 to £4,530, a £3,567 spread on the same certified stone. Do Amore Diamonds lists it at £4,530. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659447
Dimensions8.38 × 7.45 × 4.88 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
8.38 mm7.45 mm1.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659447
Side View
Table 57.0%Crown 36.6°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 58.2%

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: Oct 28
Current: £4,530 GBP|Low: £574 GBP|High: £4,739 GBP|Avg: £1,997 GBP|-4.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10£574 GBP
Retailer 7£964 GBP
Retailer 5£966 GBP
Retailer 11£1,170 GBP
Retailer 8£1,280 GBP
Retailer 6£1,414 GBP
Retailer 9£1,477 GBP
Retailer 4£2,579 GBP
Retailer 3£2,903 GBP
Retailer 2£3,105 GBP
Do Amore Diamonds£4,530 GBP

13 data points across 11 retailers

7 retailers£964 GBP to £4,530 GBP

A
Cheapest Retailer
-
£964 GBP
$1,291 USD
A
Retailer 2
-
£966 GBP
$1,295 USD
View
B+
Retailer 3
-
£1,414 GBP
$1,895 USD
View
Retailer 4
-
£1,477 GBP
ZAR 31,974 ZAR
View
Price last confirmed 49 days ago
B+
Retailer 5
-
£2,579 GBP
View
B
Retailer 6
-
£3,105 GBP
$4,160 USD
View
Most Expensive
B
Do Amore Diamonds
27-8E6BA3D03 · Oct 29
£4,530 GBP
$6,070 USD
View
6 more retailers have this diamond
Prices start from £964 GBPSave up to £3,567 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
1.77ct Heart
£964 GBP