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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 €506 EUR
$567 USD
As of November 2, 2026
Save €3,979 EUR (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,485 EUR 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 €506 to €4,485, a €3,979 spread on the same certified stone. Do Amore Diamonds lists it at €4,485. 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: €4,485 EUR|Low: €506 EUR|High: €5,242 EUR|Avg: €1,922 EUR|-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€506 EUR
Retailer 14€566 EUR
Retailer 6€672 EUR
Retailer 10€743 EUR
Retailer 4€753 EUR
Retailer 5€912 EUR
Retailer 9€965 EUR
Retailer 2€1,109 EUR
Retailer 11€1,555 EUR
Retailer 12€1,819 EUR
Retailer 13€2,729 EUR
Retailer 7€3,281 EUR
Retailer 3€3,531 EUR
Do Amore Diamonds€4,485 EUR

30 data points across 14 retailers

14 retailers€506 EUR to €4,485 EUR

A
Cheapest Retailer
-
€506 EUR
$567 USD
A
Retailer 2
-
€566 EUR
$635 USD
View
A
Retailer 3
-
€672 EUR
$754 USD
View
Final sale: no returns
A
Retailer 4
-
€743 EUR
$833 USD
View
A
Retailer 5
-
€753 EUR
$845 USD
View
A
Retailer 6
-
€912 EUR
$1,023 USD
View
A
Retailer 7
-
€965 EUR
$1,082 USD
View
B+
Retailer 8
-
€1,109 EUR
View
B+
Retailer 9
-
€1,555 EUR
$1,744 USD
View
B+
Retailer 10
-
€1,819 EUR
$2,040 USD
View
B
Retailer 11
-
€2,729 EUR
£2,410 GBP
View
Price last confirmed 7 days ago
B
Retailer 12
-
€3,281 EUR
$3,680 USD
View
B
Retailer 13
-
€3,531 EUR
$3,960 USD
View
Most Expensive
B
Do Amore Diamonds
27-C7490B28A · Nov 1
€4,485 EUR
$5,030 USD
View
13 more retailers have this diamond
Prices start from €506 EURSave up to €3,979 EUR

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
€506 EUR