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 $555 USD
As of October 30, 2026
Save $5,455 USD (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,010 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 $555 to $6,010, a $5,455 spread on the same certified stone. Brilliant Earth lists it at $6,010. 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
Color
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+
Exceptional
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: $6,010 USD|Low: $555 USD|High: $6,010 USD|Avg: $2,326 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 11$555 USD
Retailer 3$622 USD
Retailer 8$624 USD
Retailer 14$930 USD
Retailer 13$1,062 USD
Retailer 10$1,110 USD
Retailer 6$1,383 USD
Retailer 7$1,679 USD
Retailer 16$1,777 USD
Retailer 17$1,999 USD
Retailer 5$2,244 USD
Retailer 9$3,131 USD
Retailer 2$3,317 USD
Retailer 12$3,967 USD
Retailer 4$4,565 USD
Retailer 15$4,930 USD
Brilliant Earth$6,010 USD

16 data points across 17 retailers

13 retailers$555 USD to $6,010 USD

A+
Cheapest Retailer
-
$555 USD
A
Retailer 2
-
$622 USD
View
A
Retailer 3
-
$930 USD
View
A
Retailer 4
-
$1,062 USD
View
A
Retailer 5
-
$1,110 USD
View
B+
Retailer 6
-
$1,777 USD
View
B+
Retailer 7
-
$1,999 USD
View
B+
Retailer 8
-
$2,244 USD
View
B
Retailer 9
-
$3,317 USD
£2,612 GBP
View
B
Retailer 10
-
$3,967 USD
View
Retailer 11
-
$4,565 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$4,930 USD
View
Most Expensive
B
Brilliant Earth
21732993Y · Oct 29
$6,010 USD
View
12 more retailers have this diamond
Prices start from $555 USDSave up to $5,455 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
$555 USD