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Round|Lab Grown|IGI

1.03ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG804649999

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804649999

Diamond specifications and retailer prices

From £169 GBP
$224 USD
As of October 29, 2026
Save £975 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,144 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804649999 or 804649999. Listed at 19 retailers as of October 28, 2026, with prices from £169 to £1,144, a £975 spread on the same certified stone. Brilliant Earth lists it at £1,144. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804649999
Dimensions6.56 × 6.50 × 3.95 mm
L/W Ratio1.01
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
6.56 mm6.50 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804649999
Side View
Table 57.0%Crown 33.9°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

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A+
Exceptional
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 29
Current: £1,144 GBP|Low: £167 GBP|High: £1,144 GBP|Avg: £463 GBP
Brilliant Earth
Retailer 2
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Retailer 19
October 29, 2026
Retailer 6£169 GBP
Retailer 7£189 GBP
Retailer 17£196 GBP
Retailer 9£209 GBP
Retailer 18£209 GBP
Retailer 12£333 GBP
Retailer 2£351 GBP
Retailer 3£356 GBP
Retailer 14£359 GBP
Retailer 4£385 GBP
Retailer 13£386 GBP
Retailer 5£401 GBP
Retailer 8£565 GBP
Retailer 11£672 GBP
Retailer 16£674 GBP
Retailer 19£711 GBP
Retailer 10£721 GBP
Retailer 15£838 GBP
Brilliant Earth£1,144 GBP

29 data points across 19 retailers

19 retailers£169 GBP to £1,144 GBP

A+
Cheapest Retailer
-
£169 GBP
$224 USD
A
Retailer 2
-
£189 GBP
$251 USD
View
Final sale: no returns
A
Retailer 3
-
£196 GBP
$260 USD
View
A
Retailer 4
-
£209 GBP
$278 USD
View
A
Retailer 5
-
£209 GBP
$278 USD
View
A
Retailer 6
-
£333 GBP
View
A
Retailer 7
-
£351 GBP
€444 EUR
View
A
Retailer 8
-
£356 GBP
$473 USD
View
A
Retailer 9
-
£359 GBP
ZAR 7,707 ZAR
View
A
Retailer 10
-
£385 GBP
$512 USD
View
A
Retailer 11
-
£386 GBP
View
A
Retailer 12
-
£401 GBP
$533 USD
View
B+
Retailer 13
-
£565 GBP
SGD 1,015 SGD
View
B+
Retailer 14
-
£672 GBP
$893 USD
View
B+
Retailer 15
-
£674 GBP
$896 USD
View
B+
Retailer 16
-
£711 GBP
$945 USD
View
B+
Retailer 17
-
£721 GBP
$958 USD
View
B+
Retailer 18
-
£838 GBP
View
Most Expensive
B
Brilliant Earth
21420116A · Oct 28
£1,144 GBP
$1,520 USD
View
18 more retailers have this diamond
Prices start from £169 GBPSave up to £975 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
£169 GBP