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Round|Lab Grown|IGI

1.03ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG803629702

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803629702

Diamond specifications and retailer prices

From £311 GBP
$414 USD
As of October 30, 2026
Save £1,424 GBP (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,735 GBP at Brilliant Earth · As of October 29, 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 LG803629702 or 803629702. Listed at 22 retailers as of October 29, 2026, with prices from £311 to £1,735, a £1,424 spread on the same certified stone. Brilliant Earth lists it at £1,735. 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 angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803629702
Dimensions6.50 × 6.46 × 3.96 mm
L/W Ratio1.01
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
6.50 mm6.46 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803629702
Side View
Table 60.0%Crown 35.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.0%

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: £1,735 GBP|Low: £267 GBP|High: £1,735 GBP|Avg: £685 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 12£279 GBP
Retailer 4£345 GBP
Retailer 9£439 GBP
Retailer 3£464 GBP
Retailer 2£549 GBP
Retailer 10£570 GBP
Retailer 7£584 GBP
Retailer 8£593 GBP
Retailer 5£622 GBP
Retailer 11£862 GBP
Retailer 6£1,356 GBP
Brilliant Earth£1,735 GBP

35 data points across 12 retailers

22 retailers£311 GBP to £1,735 GBP

Retailer 1
-
£279 GBP
$371 USD
Price last confirmed 20 days ago
A
Retailer 2
-
£311 GBP
$414 USD
View
Final sale: no returns
Retailer 3
-
£323 GBP
$430 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£345 GBP
$460 USD
View
Price last confirmed 17 days ago
Retailer 5
-
£345 GBP
$460 USD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
£439 GBP
$585 USD
View
B+
Retailer 7
-
£439 GBP
$585 USD
View
B+
Retailer 8
-
£464 GBP
$618 USD
View
B+
Retailer 9
-
£521 GBP
$694 USD
View
B+
Retailer 10
-
£549 GBP
View
B+
Retailer 11
-
£570 GBP
A$1,168 AUD
View
B+
Retailer 12
-
£584 GBP
€741 EUR
View
B+
Retailer 13
-
£593 GBP
ZAR 12,766 ZAR
View
B+
Retailer 14
-
£622 GBP
View
B
Retailer 15
-
£862 GBP
$1,148 USD
View
B
Retailer 16
-
£917 GBP
SGD 1,650 SGD
View
Retailer 17
-
£928 GBP
$1,236 USD
View
Price last confirmed 28 days ago
Retailer 18
-
£1,110 GBP
$1,478 USD
View
Price last confirmed 29 days ago
B
Retailer 19
-
£1,140 GBP
$1,518 USD
View
B
Retailer 20
-
£1,306 GBP
$1,739 USD
View
B
Retailer 21
-
£1,356 GBP
View
Most Expensive
B
Brilliant Earth
20086162A · Oct 29
£1,735 GBP
$2,310 USD
View
21 more retailers have this diamond
Prices start from £311 GBPSave up to £1,424 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
£311 GBP