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Radiant|Lab Grown|IGI

1.03ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816630848

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG816630848

Diamond specifications and retailer prices

From £203 GBP
$272 USD
As of October 30, 2026
Save £1,536 GBP (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,739 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.03ct lab-grown radiant diamond

This 1.03ct lab-grown radiant 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 LG816630848 or 816630848. Listed at 18 retailers as of October 30, 2026, with prices from £203 to £1,739, a £1,536 spread on the same certified stone. Do Amore Diamonds lists it at £1,739. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630848
Dimensions7.18 × 5.10 × 3.40 mm
L/W Ratio1.41
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
7.18 mm5.10 mm1.03 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630848
Side View
Table 64.0%Crown 41.3°Girdle: MediumPavilion 36.6°Culet: NoneDepth 66.7%

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: £1,739 GBP|Low: £203 GBP|High: £2,075 GBP|Avg: £669 GBP|-16.2%
Do Amore Diamonds
Retailer 2
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October 31, 2026
Retailer 7£203 GBP
Retailer 12£256 GBP
Retailer 6£278 GBP
Retailer 4£301 GBP
Retailer 10£319 GBP
Retailer 3£337 GBP
Retailer 19£391 GBP
Retailer 9£407 GBP
Retailer 13£426 GBP
Retailer 2£476 GBP
Retailer 11£552 GBP
Retailer 16£725 GBP
Retailer 14£782 GBP
Retailer 17£813 GBP
Retailer 8£923 GBP
Retailer 5£992 GBP
Retailer 15£995 GBP
Retailer 18£1,616 GBP
Do Amore Diamonds£1,739 GBP

32 data points across 19 retailers

18 retailers£203 GBP to £1,739 GBP

A
Cheapest Retailer
-
£203 GBP
$272 USD
Final sale: no returns
A
Retailer 2
-
£256 GBP
View
A
Retailer 3
-
£278 GBP
$372 USD
View
Retailer 4
-
£299 GBP
$400 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£301 GBP
$403 USD
View
Retailer 6
-
£316 GBP
$423 USD
View
Price last confirmed 34 days ago
A
Retailer 7
-
£337 GBP
$452 USD
View
Retailer 8
-
£391 GBP
€499 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
£426 GBP
ZAR 9,226 ZAR
View
B+
Retailer 10
-
£476 GBP
View
B+
Retailer 11
-
£725 GBP
$971 USD
View
B+
Retailer 12
-
£782 GBP
$1,048 USD
View
B
Retailer 13
-
£813 GBP
$1,090 USD
View
B
Retailer 14
-
£923 GBP
$1,237 USD
View
B+
Retailer 15
-
£992 GBP
$1,329 USD
View
B
Retailer 16
-
£995 GBP
View
Retailer 17
-
£1,616 GBP
$2,165 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Do Amore Diamonds
27-81EF15924 · Oct 30
£1,739 GBP
$2,330 USD
View
17 more retailers have this diamond
Prices start from £203 GBPSave up to £1,536 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 Radiant
£203 GBP