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Radiant|Lab Grown|IGI

1.89ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG784642886

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

Certificate IGI LG784642886

Diamond specifications and retailer prices

From £682 GBP
$914 USD
As of October 30, 2026
Save £2,460 GBP (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,407 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 LG784642886 or 784642886. Listed at 7 retailers as of October 30, 2026, with a 361% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642886
Dimensions8.94 × 6.14 × 4.02 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
8.94 mm6.14 mm1.89 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642886
Side View
Table 63.0%Crown 41.1°Girdle: STK-THKPavilion 32.8°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,407 GBP|Low: £682 GBP|High: £4,620 GBP|Avg: £2,037 GBP|+10.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£682 GBP
Retailer 4£826 GBP
Retailer 6£907 GBP
Retailer 9£966 GBP
Retailer 8£1,027 GBP
Retailer 12£1,307 GBP
Retailer 5£2,421 GBP
Retailer 11£2,622 GBP
Retailer 10£2,661 GBP
Retailer 3£2,893 GBP
Retailer 2£3,142 GBP
Rare Carat£3,407 GBP

23 data points across 12 retailers

7 retailers£682 GBP to £3,142 GBP

A
Cheapest Retailer
-
£682 GBP
$914 USD
A
Retailer 2
-
£907 GBP
$1,215 USD
View
A
Retailer 3
-
£966 GBP
$1,295 USD
View
Retailer 4
-
£1,027 GBP
€1,310 EUR
View
Price last confirmed 7 days ago
B
Retailer 5
-
£2,421 GBP
View
B
Retailer 6
-
£3,142 GBP
$4,210 USD
View
Most Expensive
Rare Carat
P85B-12 · Oct 21
£3,407 GBP
$4,565 USD
View
Price last confirmed 9 days ago
6 more retailers have this diamond
Prices start from £682 GBPSave up to £2,460 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
£682 GBP