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Heart|Lab Grown|IGI

0.78ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG683590728

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG683590728

Diamond specifications and retailer prices

From £204 GBP
$273 USD
As of November 3, 2026
Save £705 GBP (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £908 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct lab-grown heart diamond

This 0.78ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG683590728 or 683590728. Listed at 13 retailers as of October 29, 2026, with prices from £204 to £908, a £705 spread on the same certified stone. MOH London lists it at £908. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.78
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683590728
Dimensions5.60 × 6.43 × 3.71 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
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
5.60 mm6.43 mm0.78 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683590728
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 57.7%

Caratlytics Score

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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: £908 GBP|Low: £182 GBP|High: £1,133 GBP|Avg: £495 GBP|-18.9%
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 9£182 GBP
Retailer 10£204 GBP
Retailer 11£225 GBP
Retailer 5£236 GBP
Retailer 3£261 GBP
Retailer 8£379 GBP
Retailer 7£400 GBP
Retailer 6£427 GBP
Retailer 2£577 GBP
Retailer 12£769 GBP
Retailer 4£900 GBP
MOH London£908 GBP

42 data points across 12 retailers

13 retailers£204 GBP to £908 GBP

Retailer 1
-
£182 GBP
$244 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£204 GBP
$273 USD
View
Final sale: no returns
Retailer 3
-
£225 GBP
$302 USD
View
Price last confirmed 21 days ago
A
Retailer 4
-
£236 GBP
$317 USD
View
Retailer 5
-
£261 GBP
$350 USD
View
Price last confirmed 35 days ago
B
Retailer 6
-
£379 GBP
$508 USD
View
Retailer 7
-
£400 GBP
A$825 AUD
View
Price last confirmed 7 days ago
B
Retailer 8
-
£427 GBP
View
B
Retailer 9
-
£577 GBP
A$1,190 AUD
View
Retailer 10
-
£725 GBP
$972 USD
View
Price last confirmed 21 days ago
B
Retailer 11
-
£769 GBP
$1,032 USD
View
Retailer 12
-
£900 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG683590728 · Oct 29
£908 GBP
View
12 more retailers have this diamond
Prices start from £204 GBPSave up to £705 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
0.78ct Heart
£204 GBP