CaratHunter
Plans
Radiant|Lab Grown|IGI

1.89ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG788624817

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

Certificate IGI LG788624817

Diamond specifications and retailer prices

From £690 GBP
$924 USD
As of October 30, 2026
Save £2,475 GBP (78%) vs most expensive(unlock to see where)
11 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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788624817 or 788624817. Listed at 11 retailers as of October 29, 2026, with a 359% 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
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788624817
Dimensions8.53 × 6.29 × 4.28 mm
L/W Ratio1.36
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
8.53 mm6.29 mm1.89 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788624817
Side View
Table 66.0%Crown 40.5°Girdle: MediumPavilion 37.5°Culet: NoneDepth 68.0%

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: £690 GBP|High: £5,963 GBP|Avg: £2,553 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£690 GBP
Retailer 5£716 GBP
Retailer 9£1,093 GBP
Retailer 10£1,527 GBP
Retailer 11£1,874 GBP
Retailer 6£2,040 GBP
Retailer 3£2,133 GBP
Retailer 12£2,311 GBP
Retailer 2£2,590 GBP
Retailer 8£3,164 GBP
Rare Carat£3,407 GBP
Retailer 4£5,963 GBP

25 data points across 12 retailers

11 retailers£690 GBP to £3,164 GBP

Retailer 1
-
£459 GBP
$615 USD
Price last confirmed 23 days ago
Retailer 2
-
£518 GBP
$694 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
£690 GBP
$924 USD
View
A
Retailer 4
-
£716 GBP
$960 USD
View
B+
Retailer 5
-
£1,093 GBP
$1,465 USD
View
B+
Retailer 6
-
£1,527 GBP
$2,045 USD
View
Retailer 7
-
£1,652 GBP
$2,213 USD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£2,040 GBP
View
B
Retailer 9
-
£2,590 GBP
$3,470 USD
View
B
Retailer 10
-
£3,164 GBP
$4,240 USD
View
Most Expensive
Rare Carat
PE-183875 · Oct 21
£3,407 GBP
$4,565 USD
View
Price last confirmed 10 days ago
10 more retailers have this diamond
Prices start from £690 GBPSave up to £2,475 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
£690 GBP