Heart|Lab Grown|IGI

1.03ct D VVS1 Heart Lab Grown Diamond

VG • D/VVS1 • IGI LG825656326

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825656326

Diamond specifications and retailer prices

From £138 GBP
$185 USD
As of October 30, 2026
Save £667 GBP (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £851 GBP at Brilliant Earth · As of October 13, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG825656326 or 825656326. Listed at 20 retailers as of October 29, 2026, with a 483% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.03
Carat
D
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825656326
Dimensions6.36 × 7.01 × 4.00 mm
L/W Ratio1.10
Girdle conditionFaceted
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
6.36 mm7.01 mm1.03 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825656326
Side View
Table 57.0%Crown 32.7°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 57.1%

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: £851 GBP|Low: £133 GBP|High: £873 GBP|Avg: £371 GBP|-2.6%
Brilliant Earth
Retailer 2
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Retailer 18
October 31, 2026
Retailer 18£138 GBP
Retailer 10£154 GBP
Retailer 7£160 GBP
Retailer 5£172 GBP
Retailer 6£172 GBP
Retailer 11£196 GBP
Retailer 12£291 GBP
Retailer 13£294 GBP
Retailer 8£302 GBP
Retailer 2£310 GBP
Retailer 9£327 GBP
Retailer 14£418 GBP
Retailer 4£433 GBP
Retailer 15£477 GBP
Retailer 3£551 GBP
Retailer 16£590 GBP
Retailer 17£805 GBP
Brilliant Earth£851 GBP

33 data points across 18 retailers

20 retailers£138 GBP to £805 GBP

A
Cheapest Retailer
-
£138 GBP
$185 USD
A
Retailer 2
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£154 GBP
$207 USD
View
Final sale: no returns
A
Retailer 3
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£160 GBP
$215 USD
View
A
Retailer 4
-
£172 GBP
$230 USD
View
A
Retailer 5
-
£172 GBP
$230 USD
View
A
Retailer 6
-
£196 GBP
View
B+
Retailer 7
-
£291 GBP
€371 EUR
View
B+
Retailer 8
-
£294 GBP
ZAR 6,367 ZAR
View
B+
Retailer 9
-
£302 GBP
$404 USD
View
B+
Retailer 10
-
£310 GBP
View
B+
Retailer 11
-
£327 GBP
$438 USD
View
B+
Retailer 12
-
£350 GBP
$469 USD
View
B+
Retailer 13
-
£418 GBP
A$861 AUD
View
B+
Retailer 14
-
£433 GBP
$580 USD
View
B
Retailer 15
-
£477 GBP
SGD 864 SGD
View
B
Retailer 16
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£551 GBP
$738 USD
View
B
Retailer 17
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£590 GBP
$791 USD
View
B
Retailer 18
-
£591 GBP
$792 USD
View
B
Retailer 19
-
£805 GBP
View
Most Expensive
Brilliant Earth
21418553A · Oct 13
£851 GBP
$1,140 USD
View
Price last confirmed 18 days ago
19 more retailers have this diamond
Prices start from £138 GBPSave up to £667 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
£138 GBP