Radiant|Lab Grown|IGI

1.87ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG825661174

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

Certificate IGI LG825661174

Diamond specifications and retailer prices

From $666 USD
As of October 30, 2026
Save $3,444 USD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,540 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825661174 or 825661174. Listed at 20 retailers as of October 30, 2026, with a 517% 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

1.87
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661174
Dimensions8.33 × 6.33 × 4.21 mm
L/W Ratio1.32
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
8.33 mm6.33 mm1.87 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661174
Side View
Table 63.0%Crown 41.5°Girdle: Slightly ThickPavilion 36.7°Culet: NoneDepth 66.5%

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: $4,540 USD|Low: $666 USD|High: $5,580 USD|Avg: $2,138 USD|-2.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 5$666 USD
Retailer 9$819 USD
Retailer 14$850 USD
Retailer 16$1,113 USD
Retailer 4$1,131 USD
Retailer 11$1,153 USD
Retailer 13$1,267 USD
Retailer 3$1,596 USD
Retailer 17$1,660 USD
Retailer 15$2,149 USD
Retailer 8$2,321 USD
Retailer 6$2,384 USD
Retailer 7$2,430 USD
Retailer 2$2,578 USD
Retailer 12$3,217 USD
Retailer 10$4,110 USD
Rare Carat$4,540 USD

34 data points across 17 retailers

20 retailers$666 USD to $4,110 USD

A
Cheapest Retailer
-
$666 USD
Final sale: no returns
Retailer 2
-
$677 USD
View
Price last confirmed 22 days ago
Retailer 3
-
$768 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$786 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$850 USD
View
Retailer 6
-
$1,113 USD
€1,060 EUR
View
Price last confirmed 7 days ago
A
Retailer 7
-
$1,131 USD
View
A
Retailer 8
-
$1,153 USD
£908 GBP
View
A
Retailer 9
-
$1,267 USD
ZAR 20,462 ZAR
View
B+
Retailer 10
-
$1,596 USD
View
B+
Retailer 11
-
$1,660 USD
View
B+
Retailer 12
-
$2,149 USD
£1,692 GBP
View
Retailer 13
-
$2,209 USD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
$2,321 USD
SGD 3,136 SGD
View
B+
Retailer 15
-
$2,384 USD
View
B
Retailer 16
-
$2,430 USD
View
B+
Retailer 17
-
$2,578 USD
View
B
Retailer 18
-
$3,217 USD
£2,533 GBP
View
B
Retailer 19
-
$4,110 USD
View
Most Expensive
Rare Carat
PD-244603 · Oct 21
$4,540 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $666 USDSave up to $3,444 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
$666 USD