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Heart|Lab Grown|IGI

1.03ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG799689407

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG799689407

Diamond specifications and retailer prices

From £146 GBP
As of November 3, 2026
Save £684 GBP (82%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £830 GBP at The Diamond Guys · As of November 5, 2026
View at The Diamond Guys

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG799689407 or 799689407. Listed at 5 retailers as of November 3, 2026, with prices from £146 to £830, a £684 spread on the same certified stone. The Diamond Guys lists it at £830. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799689407
Dimensions7.13 × 6.21 × 4.13 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.13 mm6.21 mm1.03 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799689407
Side View
Table 62.0%Crown 34°Girdle: MED-STKPavilion 39.8°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: £146 GBP|Low: £104 GBP|High: £1,378 GBP|Avg: £530 GBP|-9.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
The Diamond Guys
October 28, 2026
Retailer 2£104 GBP
Retailer 1£146 GBP
Retailer 13£205 GBP
Retailer 7£227 GBP
Retailer 14£319 GBP
Retailer 11£345 GBP
Retailer 8£347 GBP
Retailer 4£368 GBP
Retailer 3£524 GBP
Retailer 5£627 GBP
Retailer 12£758 GBP
The Diamond Guys£830 GBP
Retailer 10£869 GBP
Retailer 6£889 GBP
Retailer 9£1,378 GBP

8 data points across 15 retailers

5 retailers£146 GBP to £830 GBP

A
Cheapest Retailer
-
£146 GBP
Final sale: no returns
B+
Retailer 2
-
£227 GBP
View
Retailer 3
-
£368 GBP
View
Price last confirmed 126 days ago
B
Retailer 4
-
£627 GBP
View
Most Expensive
B
The Diamond Guys
1958044212 · Nov 5
£830 GBP
$1,121 USD
View
4 more retailers have this diamond
Prices start from £146 GBPSave up to £684 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
1.03ct Heart
£146 GBP