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Heart|Lab Grown|IGI

0.80ct J SI1 Heart Lab Grown Diamond

VG • J/SI1 • IGI LG569312459

Certificate IGI LG569312459

Diamond specifications and retailer prices

From £566 GBP
As of November 6, 2026
Save £475 GBP (46%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,041 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 0.8ct lab-grown heart diamond

This 0.8ct lab-grown heart sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG569312459 or 569312459. Listed at 2 retailers as of November 5, 2026, with prices from £566 to £1,041, a £475 spread on the same certified stone. 77 Diamonds lists it at £1,041. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.80
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG569312459
Dimensions5.46 × 6.46 × 3.83 mm
L/W Ratio1.18
Top View
5.46 mm6.46 mm0.80 ctJ / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG569312459
Side View
Table 58.5%CrownGirdle: STK-VTKPavilionCuletDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,041 GBP|Low: £566 GBP|High: £1,058 GBP|Avg: £818 GBP|+1.3%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£566 GBP
Retailer 3£826 GBP
77 Diamonds£1,041 GBP

45 data points across 3 retailers

2 retailers£566 GBP to £1,041 GBP

B+
Cheapest Retailer
-
£566 GBP
Most Expensive
B
77 Diamonds
HSCPTDG4KDAQ · Nov 5
£1,041 GBP
View
1 more retailer has this diamond
Prices start from £566 GBPSave up to £475 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.

B+
0.80ct Heart
£566 GBP