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Radiant|Lab Grown|IGI

1.00ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG790611874

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

Certificate IGI LG790611874

Diamond specifications and retailer prices

From £228 GBP
$306 USD
As of October 30, 2026
Save £1,802 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,030 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1ct lab-grown radiant diamond

This 1ct 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 LG790611874 or 790611874. Listed at 21 retailers as of October 30, 2026, with prices from £228 to £2,030, a £1,802 spread on the same certified stone. Do Amore Diamonds lists it at £2,030. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611874
Dimensions7.20 × 4.92 × 3.24 mm
L/W Ratio1.46
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
7.20 mm4.92 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611874
Side View
Table 65.0%Crown 45.1°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 65.9%

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: £561 GBP|Low: £219 GBP|High: £1,597 GBP|Avg: £651 GBP|+2.8%
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 31, 2026
Retailer 14£228 GBP
Retailer 8£256 GBP
Retailer 3£265 GBP
Retailer 4£284 GBP
Retailer 15£284 GBP
Retailer 11£399 GBP
Retailer 7£461 GBP
Retailer 2£462 GBP
Retailer 10£538 GBP
Retailer 1£561 GBP
Retailer 13£871 GBP
Retailer 5£962 GBP
Retailer 16£1,006 GBP
Retailer 6£1,217 GBP
Retailer 9£1,262 GBP
Retailer 12£1,567 GBP

44 data points across 16 retailers

21 retailers£228 GBP to £2,030 GBP

A
Cheapest Retailer
-
£228 GBP
$306 USD
A
Retailer 2
-
£256 GBP
$343 USD
View
Final sale: no returns
A
Retailer 3
-
£265 GBP
$355 USD
View
A
Retailer 4
-
£284 GBP
$380 USD
View
A
Retailer 5
-
£284 GBP
$380 USD
View
A
Retailer 6
-
£331 GBP
$444 USD
View
B+
Retailer 7
-
£399 GBP
$535 USD
View
A
Retailer 8
-
£401 GBP
HK$4,200 HKD
View
B+
Retailer 9
-
£461 GBP
$618 USD
View
B+
Retailer 10
-
£462 GBP
$619 USD
View
B+
Retailer 11
-
£538 GBP
ZAR 11,644 ZAR
View
B+
Retailer 12
-
£561 GBP
View
B
Retailer 13
-
£871 GBP
$1,167 USD
View
B
Retailer 14
-
£962 GBP
SGD 1,742 SGD
View
B
Retailer 15
-
£1,006 GBP
$1,348 USD
View
B
Retailer 16
-
£1,126 GBP
$1,508 USD
View
B
Retailer 17
-
£1,141 GBP
$1,529 USD
View
B
Retailer 18
-
£1,217 GBP
View
B
Retailer 19
-
£1,262 GBP
View
B
Retailer 20
-
£1,567 GBP
$2,100 USD
View
Most Expensive
B
Do Amore Diamonds
27-5ABEF8CC6 · Oct 31
£2,030 GBP
$2,720 USD
View
20 more retailers have this diamond
Prices start from £228 GBPSave up to £1,802 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
1.00ct Radiant
£228 GBP