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Radiant|Lab Grown|IGI

1.87ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG846662590

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

Certificate IGI LG846662590

Diamond specifications and retailer prices

From $635 USD
As of October 30, 2026
Save $5,005 USD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,640 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG846662590 or 846662590. Listed at 15 retailers as of October 29, 2026, with prices from $635 to $5,640, a $5,005 spread on the same certified stone. Do Amore Diamonds lists it at $5,640. 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°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662590
Dimensions8.80 × 6.21 × 3.98 mm
L/W Ratio1.42
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
8.80 mm6.21 mm1.87 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662590
Side View
Table 63.0%Crown 40°Girdle: MediumPavilion 33.9°Culet: NoneDepth 64.1%

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 30
Current: $5,640 USD|Low: $635 USD|High: $6,000 USD|Avg: $2,403 USD
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
October 30, 2026
Retailer 12$635 USD
Retailer 6$691 USD
Retailer 14$906 USD
Retailer 3$915 USD
Retailer 9$922 USD
Retailer 13$1,204 USD
Retailer 16$1,270 USD
Retailer 11$1,372 USD
Retailer 15$1,882 USD
Retailer 5$2,188 USD
Retailer 4$2,287 USD
Retailer 7$3,138 USD
Retailer 10$3,211 USD
Retailer 8$3,803 USD
Retailer 2$4,160 USD
Do Amore Diamonds$5,640 USD

9 data points across 16 retailers

15 retailers$635 USD to $5,640 USD

A
Cheapest Retailer
-
$635 USD
A
Retailer 2
-
$691 USD
View
A
Retailer 3
-
$906 USD
View
A
Retailer 4
-
$915 USD
View
A
Retailer 5
-
$922 USD
£726 GBP
View
A
Retailer 6
-
$1,204 USD
View
A
Retailer 7
-
$1,235 USD
View
A
Retailer 8
-
$1,270 USD
View
B+
Retailer 9
-
$1,882 USD
View
B+
Retailer 10
-
$2,188 USD
View
B+
Retailer 11
-
$2,287 USD
View
Retailer 12
-
$3,138 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
$3,211 USD
£2,528 GBP
View
B
Retailer 14
-
$4,160 USD
View
Most Expensive
B
Do Amore Diamonds
27-803759731 · Oct 29
$5,640 USD
View
14 more retailers have this diamond
Prices start from $635 USDSave up to $5,005 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
$635 USD