Radiant|Lab Grown|IGI

1.87ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG830620119

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

Certificate IGI LG830620119

Diamond specifications and retailer prices

From $753 USD
As of October 29, 2026
Save $5,237 USD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,990 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.87ct lab-grown radiant diamond

This 1.87ct 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 LG830620119 or 830620119. Listed at 10 retailers as of October 29, 2026, with prices from $753 to $5,990, a $5,237 spread on the same certified stone. Brilliant Earth lists it at $5,990. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620119
Dimensions8.40 × 6.21 × 4.23 mm
L/W Ratio1.35
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
8.40 mm6.21 mm1.87 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620119
Side View
Table 67.0%Crown 40.7°Girdle: ThickPavilion 37.5°Culet: NoneDepth 68.1%

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 29
Current: $1,203 USD|Low: $753 USD|High: $2,892 USD|Avg: $1,653 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5$753 USD
Retailer 7$757 USD
Retailer 6$930 USD
Retailer 1$1,203 USD
Retailer 3$1,604 USD
Retailer 9$2,476 USD
Retailer 4$2,597 USD
Retailer 8$2,734 USD
Retailer 2$2,892 USD

2 data points across 9 retailers

10 retailers$753 USD to $5,990 USD

A
Cheapest Retailer
-
$753 USD
A
Retailer 2
-
$757 USD
View
Final sale: no returns
A
Retailer 3
-
$930 USD
View
A
Retailer 4
-
$1,203 USD
£947 GBP
View
B+
Retailer 5
-
$1,604 USD
View
B
Retailer 6
-
$2,476 USD
View
B
Retailer 7
-
$2,597 USD
View
B
Retailer 8
-
$2,734 USD
SGD 3,694 SGD
View
B
Retailer 9
-
$2,892 USD
View
Most Expensive
B
Brilliant Earth
22348624A · Oct 29
$5,990 USD
View
9 more retailers have this diamond
Prices start from $753 USDSave up to $5,237 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
1.87ct Radiant
$753 USD