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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 $904 AUD
$635 USD
As of October 30, 2026
Save $7,125 AUD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,029 AUD 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 $904 to $8,029, a $7,125 spread on the same certified stone. Do Amore Diamonds lists it at $8,029. 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

How it works →
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: $8,029 AUD|Low: $858 AUD|High: $9,538 AUD|Avg: $3,429 AUD|-15.8%
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$904 AUD
Retailer 3$984 AUD
Retailer 7$1,202 AUD
Retailer 12$1,290 AUD
Retailer 5$1,338 AUD
Retailer 11$1,714 AUD
Retailer 6$1,808 AUD
Retailer 2$1,942 AUD
Retailer 13$2,679 AUD
Retailer 15$3,115 AUD
Retailer 14$3,256 AUD
Retailer 9$4,571 AUD
Retailer 8$6,150 AUD
Retailer 4$6,428 AUD
Do Amore Diamonds$8,029 AUD

35 data points across 15 retailers

15 retailers$904 AUD to $8,029 AUD

A
Cheapest Retailer
-
$904 AUD
$635 USD
A
Retailer 2
-
$984 AUD
$691 USD
View
A
Retailer 3
-
$1,202 AUD
$844 USD
View
Final sale: no returns
A
Retailer 4
-
$1,290 AUD
$906 USD
View
A
Retailer 5
-
$1,338 AUD
$940 USD
View
A
Retailer 6
-
$1,714 AUD
$1,204 USD
View
A
Retailer 7
-
$1,808 AUD
$1,270 USD
View
B+
Retailer 8
-
$1,942 AUD
€1,299 EUR
View
B+
Retailer 9
-
$2,679 AUD
$1,882 USD
View
B+
Retailer 10
-
$3,115 AUD
$2,188 USD
View
B+
Retailer 11
-
$3,256 AUD
$2,287 USD
View
B+
Retailer 12
-
$4,571 AUD
£2,528 GBP
View
B
Retailer 13
-
$6,150 AUD
$4,320 USD
View
Retailer 14
-
$6,428 AUD
$4,515 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Do Amore Diamonds
27-7596FBE64 · Oct 30
$8,029 AUD
$5,640 USD
View
14 more retailers have this diamond
Prices start from $904 AUDSave up to $7,125 AUD

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
$904 AUD