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Round|Lab Grown|IGI

1.03ct D VS1 Round Lab Grown Diamond

EX • D/VS1 • IGI LG739581151

Shape and cutting style on the report: Round brilliant

Certificate IGI LG739581151

Diamond specifications and retailer prices

From £143 GBP
$192 USD
As of October 30, 2026
Save £687 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,336 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round 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 LG739581151 or 739581151. Listed at 25 retailers as of October 29, 2026, with a 479% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739581151
Dimensions6.43 × 6.46 × 3.95 mm
L/W Ratio1.00
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
6.43 mm6.46 mm1.03 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739581151
Side View
Table 60.0%Crown 35.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.4%

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: £143 GBP|Low: £122 GBP|High: £749 GBP|Avg: £315 GBP
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
Retailer 15
Retailer 16
October 30, 2026
Retailer 2£128 GBP
Retailer 1£143 GBP
Retailer 3£158 GBP
Retailer 15£182 GBP
Retailer 5£215 GBP
Retailer 8£225 GBP
Retailer 9£270 GBP
Retailer 13£272 GBP
Retailer 10£282 GBP
Retailer 12£295 GBP
Retailer 4£299 GBP
Retailer 7£339 GBP
Retailer 14£386 GBP
Retailer 6£509 GBP
Retailer 16£537 GBP
Retailer 11£744 GBP

39 data points across 16 retailers

25 retailers£143 GBP to £830 GBP

Retailer 1
-
£128 GBP
$171 USD
Price last confirmed 12 days ago
A
Retailer 2
-
£143 GBP
$192 USD
View
Final sale: no returns
A
Retailer 3
-
£148 GBP
$198 USD
View
A
Retailer 4
-
£158 GBP
$212 USD
View
Retailer 5
-
£158 GBP
$212 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
£182 GBP
HK$1,900 HKD
View
B+
Retailer 7
-
£215 GBP
$288 USD
View
Retailer 8
-
£225 GBP
$301 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
£270 GBP
View
B+
Retailer 10
-
£272 GBP
ZAR 5,884 ZAR
View
B+
Retailer 11
-
£282 GBP
View
B+
Retailer 12
-
£295 GBP
€377 EUR
View
Retailer 13
-
£299 GBP
$400 USD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
£339 GBP
$454 USD
View
B+
Retailer 15
-
£386 GBP
A$795 AUD
View
B+
Retailer 16
-
£396 GBP
$531 USD
View
B
Retailer 17
-
£434 GBP
SGD 786 SGD
View
Retailer 18
-
£509 GBP
$682 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
£522 GBP
$699 USD
View
Retailer 20
-
£537 GBP
$720 USD
View
Price last confirmed 7 days ago
B
Retailer 21
-
£550 GBP
$737 USD
View
B
Retailer 22
-
£744 GBP
View
B
Retailer 23
-
£822 GBP
$1,101 USD
View
B
Retailer 24
-
£830 GBP
View
Most Expensive
Queensmith
LG739581151 · Oct 27
£1,336 GBP
View
Price under review
24 more retailers have this diamond
Prices start from £143 GBPSave up to £687 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 Round
£143 GBP