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 $924 USD
As of October 30, 2026
Save $3,316 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,565 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,565 USD|Low: $924 USD|High: $7,990 USD|Avg: $3,421 USD|+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$924 USD
Retailer 5$960 USD
Retailer 9$1,465 USD
Retailer 10$2,045 USD
Retailer 11$2,512 USD
Retailer 6$2,733 USD
Retailer 3$2,858 USD
Retailer 12$3,097 USD
Retailer 2$3,470 USD
Retailer 8$4,240 USD
Rare Carat$4,565 USD
Retailer 4$7,990 USD

25 data points across 12 retailers

11 retailers$924 USD to $4,240 USD

Retailer 1
-
$615 USD
Price last confirmed 22 days ago
Retailer 2
-
$694 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$924 USD
View
A
Retailer 4
-
$960 USD
View
B+
Retailer 5
-
$1,465 USD
View
B+
Retailer 6
-
$2,045 USD
View
Retailer 7
-
$2,213 USD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$2,733 USD
£2,152 GBP
View
B
Retailer 9
-
$3,470 USD
View
B
Retailer 10
-
$4,240 USD
View
Most Expensive
Rare Carat
PE-183875 · Oct 21
$4,565 USD
View
Price last confirmed 9 days ago
10 more retailers have this diamond
Prices start from $924 USDSave up to $3,316 USD

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
$924 USD