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Radiant|Lab Grown|IGI

1.66ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG800676877

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

Certificate IGI LG800676877

Diamond specifications and retailer prices

From $1,008 NZD
$567 USD
As of November 2, 2026
Save $7,932 NZD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,940 NZD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.66ct lab-grown radiant diamond

This 1.66ct 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 LG800676877 or 800676877. Listed at 14 retailers as of November 1, 2026, with prices from $1,008 to $8,940, a $7,932 spread on the same certified stone. Do Amore Diamonds lists it at $8,940. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676877
Dimensions8.55 × 5.88 × 3.87 mm
L/W Ratio1.45
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
8.55 mm5.88 mm1.66 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676877
Side View
Table 62.0%Crown 40.8°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 65.8%

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: Nov 2
Current: $8,940 NZD|Low: $1,008 NZD|High: $10,451 NZD|Avg: $3,839 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
October 31, 2026
Retailer 8$1,008 NZD
Retailer 14$1,129 NZD
Retailer 6$1,340 NZD
Retailer 10$1,480 NZD
Retailer 4$1,502 NZD
Retailer 5$1,818 NZD
Retailer 9$1,923 NZD
Retailer 2$2,211 NZD
Retailer 11$3,100 NZD
Retailer 12$3,626 NZD
Retailer 13$5,440 NZD
Retailer 7$6,540 NZD
Retailer 3$7,038 NZD
Do Amore Diamonds$8,940 NZD

31 data points across 14 retailers

14 retailers$1,008 NZD to $8,940 NZD

A
Cheapest Retailer
-
$1,008 NZD
$567 USD
A
Retailer 2
-
$1,129 NZD
$635 USD
View
A
Retailer 3
-
$1,340 NZD
$754 USD
View
Final sale: no returns
A
Retailer 4
-
$1,480 NZD
$833 USD
View
A
Retailer 5
-
$1,502 NZD
$845 USD
View
A
Retailer 6
-
$1,818 NZD
$1,023 USD
View
A
Retailer 7
-
$1,923 NZD
$1,082 USD
View
B+
Retailer 8
-
$2,211 NZD
€1,185 EUR
View
B+
Retailer 9
-
$3,100 NZD
$1,744 USD
View
B+
Retailer 10
-
$3,626 NZD
$2,040 USD
View
B
Retailer 11
-
$5,440 NZD
£2,410 GBP
View
B
Retailer 12
-
$6,540 NZD
$3,680 USD
View
B
Retailer 13
-
$7,038 NZD
$3,960 USD
View
Most Expensive
B
Do Amore Diamonds
27-C7490B28A · Nov 1
$8,940 NZD
$5,030 USD
View
13 more retailers have this diamond
Prices start from $1,008 NZDSave up to $7,932 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
1.66ct Radiant
$1,008 NZD