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Radiant|Lab Grown|IGI

1.89ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784644319

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

Certificate IGI LG784644319

Diamond specifications and retailer prices

From £419 GBP
$561 USD
As of October 30, 2026
Save £3,298 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,717 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.89ct lab-grown radiant diamond

This 1.89ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784644319 or 784644319. Listed at 15 retailers as of October 30, 2026, with prices from £419 to £3,717, a £3,298 spread on the same certified stone. Do Amore Diamonds lists it at £3,717. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644319
Dimensions8.91 × 6.27 × 4.16 mm
L/W Ratio1.42
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
8.91 mm6.27 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644319
Side View
Table 61.0%Crown 39.2°Girdle: MediumPavilion 34.7°Culet: NoneDepth 66.3%

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 30
Current: £3,717 GBP|Low: £411 GBP|High: £4,620 GBP|Avg: £1,815 GBP|-18.5%
Do Amore Diamonds
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
October 30, 2026
Retailer 9£419 GBP
Retailer 15£469 GBP
Retailer 7£576 GBP
Retailer 5£623 GBP
Retailer 11£624 GBP
Retailer 10£801 GBP
Retailer 3£916 GBP
Retailer 6£952 GBP
Retailer 12£1,340 GBP
Retailer 14£1,461 GBP
Retailer 13£1,508 GBP
Retailer 8£2,271 GBP
Retailer 2£3,142 GBP
Retailer 4£3,407 GBP
Do Amore Diamonds£3,717 GBP

34 data points across 15 retailers

15 retailers£419 GBP to £3,717 GBP

A+
Cheapest Retailer
-
£419 GBP
$561 USD
A
Retailer 2
-
£469 GBP
$628 USD
View
A
Retailer 3
-
£576 GBP
$772 USD
View
Final sale: no returns
A
Retailer 4
-
£623 GBP
$835 USD
View
A
Retailer 5
-
£624 GBP
$836 USD
View
A
Retailer 6
-
£801 GBP
$1,073 USD
View
Retailer 7
-
£916 GBP
€1,169 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
£952 GBP
$1,276 USD
View
B+
Retailer 9
-
£1,340 GBP
$1,795 USD
View
B+
Retailer 10
-
£1,461 GBP
$1,958 USD
View
B+
Retailer 11
-
£1,508 GBP
$2,020 USD
View
B+
Retailer 12
-
£2,271 GBP
View
B
Retailer 13
-
£3,142 GBP
$4,210 USD
View
Retailer 14
-
£3,407 GBP
$4,565 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
27-C1FF2311F · Oct 30
£3,717 GBP
$4,980 USD
View
14 more retailers have this diamond
Prices start from £419 GBPSave up to £3,298 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+
1.89ct Radiant
£419 GBP