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Radiant|Lab Grown|IGI

1.89ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG811640897

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

Certificate IGI LG811640897

Diamond specifications and retailer prices

From £602 GBP
As of October 30, 2026
Save £3,078 GBP (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,679 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 very-good cut grade and certified by IGI LG811640897 or 811640897. Listed at 9 retailers as of October 30, 2026, with prices from £602 to £3,679, a £3,078 spread on the same certified stone. Do Amore Diamonds lists it at £3,679. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.89
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811640897
Dimensions8.50 × 6.21 × 4.31 mm
L/W Ratio1.37
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
8.50 mm6.21 mm1.89 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811640897
Side View
Table 66.0%Crown 40.6°Girdle: MediumPavilion 37.4°Culet: NoneDepth 69.4%

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: £429 GBP|High: £4,485 GBP|Avg: £1,727 GBP|-12.3%
Do Amore Diamonds
Retailer 2
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Retailer 17
October 30, 2026
Retailer 4£429 GBP
Retailer 5£465 GBP
Retailer 10£602 GBP
Retailer 13£793 GBP
Retailer 3£826 GBP
Retailer 12£828 GBP
Retailer 17£1,033 GBP
Retailer 6£1,163 GBP
Retailer 14£1,230 GBP
Retailer 7£1,253 GBP
Retailer 16£1,675 GBP
Retailer 8£2,337 GBP
Retailer 11£2,476 GBP
Retailer 9£2,570 GBP
Retailer 2£3,142 GBP
Retailer 15£3,407 GBP
Do Amore Diamonds£3,679 GBP

16 data points across 17 retailers

9 retailers£602 GBP to £3,679 GBP

A
Cheapest Retailer
-
£602 GBP
A
Retailer 2
-
£793 GBP
$1,062 USD
View
B+
Retailer 3
-
£828 GBP
$1,110 USD
View
B+
Retailer 4
-
£1,230 GBP
$1,648 USD
View
B+
Retailer 5
-
£1,675 GBP
$2,244 USD
View
B
Retailer 6
-
£2,476 GBP
View
B
Retailer 7
-
£3,142 GBP
$4,210 USD
View
Retailer 8
-
£3,407 GBP
$4,565 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
27-47372BC65 · Oct 30
£3,679 GBP
$4,930 USD
View
8 more retailers have this diamond
Prices start from £602 GBPSave up to £3,078 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
£602 GBP