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Radiant|Lab Grown|IGI

1.87ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780666186

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

Certificate IGI LG780666186

Diamond specifications and retailer prices

From $1,127 NZD
$635 USD
As of October 30, 2026
Save $8,880 NZD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,007 NZD at Do Amore Diamonds · As of October 30, 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 LG780666186 or 780666186. Listed at 15 retailers as of October 30, 2026, with prices from $1,127 to $10,007, a $8,880 spread on the same certified stone. Do Amore Diamonds lists it at $10,007. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666186
Dimensions8.98 × 6.19 × 3.86 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.98 mm6.19 mm1.87 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666186
Side View
Table 65.0%Crown 41.3°Girdle: Slightly ThickPavilion 32.1°Culet: NoneDepth 62.4%

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: $10,007 NZD|Low: $1,127 NZD|High: $11,710 NZD|Avg: $4,268 NZD|-14.5%
Do Amore Diamonds
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
October 31, 2026
Retailer 10$1,127 NZD
Retailer 3$1,226 NZD
Retailer 7$1,498 NZD
Retailer 12$1,608 NZD
Retailer 5$1,668 NZD
Retailer 11$2,136 NZD
Retailer 6$2,253 NZD
Retailer 2$2,420 NZD
Retailer 13$3,339 NZD
Retailer 15$3,883 NZD
Retailer 14$4,058 NZD
Retailer 9$5,696 NZD
Retailer 8$7,665 NZD
Retailer 4$8,011 NZD
Do Amore Diamonds$10,007 NZD

34 data points across 15 retailers

15 retailers$1,127 NZD to $10,007 NZD

A
Cheapest Retailer
-
$1,127 NZD
$635 USD
A
Retailer 2
-
$1,226 NZD
$691 USD
View
A
Retailer 3
-
$1,498 NZD
$844 USD
View
Final sale: no returns
A
Retailer 4
-
$1,608 NZD
$906 USD
View
A
Retailer 5
-
$1,668 NZD
$940 USD
View
A
Retailer 6
-
$2,136 NZD
$1,204 USD
View
A
Retailer 7
-
$2,253 NZD
$1,270 USD
View
B+
Retailer 8
-
$2,420 NZD
€1,299 EUR
View
B+
Retailer 9
-
$3,339 NZD
$1,882 USD
View
B+
Retailer 10
-
$3,883 NZD
$2,188 USD
View
B+
Retailer 11
-
$4,058 NZD
$2,287 USD
View
B+
Retailer 12
-
$5,696 NZD
£2,528 GBP
View
B
Retailer 13
-
$7,665 NZD
$4,320 USD
View
Retailer 14
-
$8,011 NZD
$4,515 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-7596FBE64 · Oct 30
$10,007 NZD
$5,640 USD
View
14 more retailers have this diamond
Prices start from $1,127 NZDSave up to $8,880 NZD

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
$1,127 NZD