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Radiant|Lab Grown|IGI

1.89ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825657814

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

Certificate IGI LG825657814

Diamond specifications and retailer prices

From £414 GBP
$555 USD
As of October 30, 2026
Save £3,265 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,679 GBP at Do Amore Diamonds · As of October 29, 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 LG825657814 or 825657814. Listed at 13 retailers as of October 29, 2026, with prices from £414 to £3,679, a £3,265 spread on the same certified stone. Do Amore Diamonds lists it at £3,679. 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 angle40.6°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825657814
Dimensions8.87 × 6.12 × 4.02 mm
L/W Ratio1.45
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
8.87 mm6.12 mm1.89 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825657814
Side View
Table 66.0%Crown 40.6°Girdle: MediumPavilion 36°Culet: NoneDepth 65.7%

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: £3,679 GBP|Low: £414 GBP|High: £4,485 GBP|Avg: £1,728 GBP|-12.3%
Do Amore Diamonds
Retailer 2
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Retailer 17
October 31, 2026
Retailer 13£414 GBP
Retailer 3£464 GBP
Retailer 8£466 GBP
Retailer 16£694 GBP
Retailer 15£793 GBP
Retailer 12£828 GBP
Retailer 6£1,033 GBP
Retailer 2£1,230 GBP
Retailer 7£1,253 GBP
Retailer 17£1,492 GBP
Retailer 5£1,675 GBP
Retailer 9£2,337 GBP
Retailer 11£2,476 GBP
Retailer 14£2,961 GBP
Retailer 10£3,142 GBP
Retailer 4£3,407 GBP
Do Amore Diamonds£3,679 GBP

18 data points across 17 retailers

13 retailers£414 GBP to £3,679 GBP

A
Cheapest Retailer
-
£414 GBP
$555 USD
A
Retailer 2
-
£464 GBP
$622 USD
View
A
Retailer 3
-
£694 GBP
$930 USD
View
A
Retailer 4
-
£793 GBP
$1,062 USD
View
A
Retailer 5
-
£828 GBP
$1,110 USD
View
B+
Retailer 6
-
£1,230 GBP
$1,648 USD
View
B+
Retailer 7
-
£1,492 GBP
$1,999 USD
View
B+
Retailer 8
-
£1,675 GBP
$2,244 USD
View
B
Retailer 9
-
£2,476 GBP
View
B
Retailer 10
-
£2,961 GBP
$3,967 USD
View
B
Retailer 11
-
£3,142 GBP
$4,210 USD
View
Retailer 12
-
£3,407 GBP
$4,565 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
27-520472AD8 · Oct 29
£3,679 GBP
$4,930 USD
View
12 more retailers have this diamond
Prices start from £414 GBPSave up to £3,265 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
£414 GBP