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Heart|Lab Grown|IGI

0.77ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818671770

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818671770

Diamond specifications and retailer prices

From £262 GBP
$351 USD
As of November 3, 2026
Save £902 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,164 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 0.77ct lab-grown heart diamond

This 0.77ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818671770 or 818671770. Listed at 17 retailers as of November 3, 2026, with prices from £262 to £1,164, a £902 spread on the same certified stone. MOH London lists it at £1,164. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.77
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818671770
Dimensions5.73 × 6.27 × 3.63 mm
L/W Ratio1.09
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
5.73 mm6.27 mm0.77 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818671770
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 39°Culet: NoneDepth 57.9%

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 3
Current: £1,164 GBP|Low: £262 GBP|High: £1,381 GBP|Avg: £670 GBP|-14.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 12£262 GBP
Retailer 4£349 GBP
Retailer 10£402 GBP
Retailer 8£410 GBP
Retailer 6£472 GBP
Retailer 2£518 GBP
Retailer 5£527 GBP
Retailer 11£655 GBP
Retailer 7£852 GBP
Retailer 3£968 GBP
Retailer 9£1,162 GBP
MOH London£1,164 GBP

37 data points across 12 retailers

17 retailers£262 GBP to £1,164 GBP

Retailer 1
-
£237 GBP
$318 USD
Price last confirmed 25 days ago
A
Retailer 2
-
£262 GBP
$351 USD
View
Final sale: no returns
Retailer 3
-
£294 GBP
$395 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£294 GBP
$395 USD
View
Price last confirmed 22 days ago
Retailer 5
-
£315 GBP
$423 USD
View
Price last confirmed 35 days ago
Retailer 6
-
£345 GBP
$463 USD
View
Price last confirmed 39 days ago
A
Retailer 7
-
£402 GBP
$540 USD
View
A
Retailer 8
-
£410 GBP
$550 USD
View
B+
Retailer 9
-
£472 GBP
€603 EUR
View
B+
Retailer 10
-
£518 GBP
View
B+
Retailer 11
-
£527 GBP
ZAR 11,432 ZAR
View
Retailer 12
-
£655 GBP
$879 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
£852 GBP
$1,143 USD
View
Retailer 14
-
£946 GBP
$1,269 USD
View
Price last confirmed 29 days ago
B
Retailer 15
-
£968 GBP
$1,299 USD
View
B
Retailer 16
-
£1,162 GBP
$1,559 USD
View
Most Expensive
B
MOH London
LG818671770 · Nov 3
£1,164 GBP
View
16 more retailers have this diamond
Prices start from £262 GBPSave up to £902 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
0.77ct Heart
£262 GBP