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Heart|Lab Grown|IGI

1.03ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG781617914

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG781617914

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 30, 2026
Save £976 GBP (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,118 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 LG781617914 or 781617914. Listed at 21 retailers as of October 27, 2026, with prices from £143 to £1,118, a £976 spread on the same certified stone. Queensmith lists it at £1,118. 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 angle36.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781617914
Dimensions6.31 × 6.93 × 4.10 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.31 mm6.93 mm1.03 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781617914
Side View
Table 56.0%Crown 36.2°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 59.2%

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: Oct 30
Current: £322 GBP|Low: £137 GBP|High: £838 GBP|Avg: £328 GBP|+4.6%
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
October 31, 2026
Retailer 12£143 GBP
Retailer 6£160 GBP
Retailer 3£166 GBP
Retailer 4£177 GBP
Retailer 14£177 GBP
Retailer 13£239 GBP
Retailer 9£304 GBP
Retailer 1£322 GBP
Retailer 7£328 GBP
Retailer 5£355 GBP
Retailer 10£432 GBP
Retailer 11£453 GBP
Retailer 2£569 GBP
Retailer 8£832 GBP

44 data points across 14 retailers

21 retailers£143 GBP to £1,118 GBP

A
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£160 GBP
$214 USD
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
$222 USD
View
A
Retailer 4
-
£177 GBP
$237 USD
View
A
Retailer 5
-
£177 GBP
$237 USD
View
A
Retailer 6
-
£201 GBP
HK$2,100 HKD
View
A
Retailer 7
-
£239 GBP
$320 USD
View
A
Retailer 8
-
£266 GBP
$357 USD
View
B+
Retailer 9
-
£304 GBP
ZAR 6,581 ZAR
View
B+
Retailer 10
-
£322 GBP
View
B+
Retailer 11
-
£328 GBP
€418 EUR
View
B+
Retailer 12
-
£355 GBP
$476 USD
View
B+
Retailer 13
-
£432 GBP
A$890 AUD
View
B
Retailer 14
-
£453 GBP
$607 USD
View
B
Retailer 15
-
£481 GBP
SGD 871 SGD
View
B
Retailer 16
-
£569 GBP
$763 USD
View
B
Retailer 17
-
£596 GBP
$798 USD
View
B
Retailer 18
-
£609 GBP
$816 USD
View
B
Retailer 19
-
£832 GBP
View
B
Retailer 20
-
£870 GBP
$1,166 USD
View
Most Expensive
B
Queensmith
LG781617914 · Oct 27
£1,118 GBP
View
20 more retailers have this diamond
Prices start from £143 GBPSave up to £976 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
£143 GBP