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Oval|Lab Grown|IGI

1.66ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG836639839

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836639839

Diamond specifications and retailer prices

From €232 EUR
$260 USD
As of November 1, 2026
Save €2,550 EUR (92%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €2,782 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836639839 or 836639839. Listed at 16 retailers as of November 1, 2026, with prices from €232 to €2,782, a €2,550 spread on the same certified stone. Brilliant Earth lists it at €2,782. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836639839
Dimensions9.51 × 6.77 × 4.13 mm
L/W Ratio1.40
Girdle conditionFaceted
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
9.51 mm6.77 mm1.66 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836639839
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 61.0%

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 1
Current: €2,782 EUR|Low: €232 EUR|High: €3,343 EUR|Avg: €1,131 EUR|-16.8%
Brilliant Earth
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
November 2, 2026
Retailer 13€232 EUR
Retailer 2€335 EUR
Retailer 5€464 EUR
Retailer 3€479 EUR
Retailer 11€529 EUR
Retailer 15€635 EUR
Retailer 16€737 EUR
Retailer 8€762 EUR
Retailer 7€842 EUR
Retailer 12€882 EUR
Retailer 4€1,019 EUR
Retailer 10€1,270 EUR
Retailer 6€1,842 EUR
Retailer 14€2,060 EUR
Retailer 9€2,492 EUR
Brilliant Earth€2,782 EUR

34 data points across 16 retailers

16 retailers€232 EUR to €2,782 EUR

A
Cheapest Retailer
-
€232 EUR
$260 USD
A
Retailer 2
-
€335 EUR
£296 GBP
View
A
Retailer 3
-
€464 EUR
$520 USD
View
A
Retailer 4
-
€479 EUR
$537 USD
View
A
Retailer 5
-
€529 EUR
View
A
Retailer 6
-
€572 EUR
$641 USD
View
A
Retailer 7
-
€737 EUR
A$1,272 AUD
View
A
Retailer 8
-
€762 EUR
$855 USD
View
A
Retailer 9
-
€842 EUR
$944 USD
View
A
Retailer 10
-
€882 EUR
$989 USD
View
B+
Retailer 11
-
€1,019 EUR
$1,143 USD
View
B+
Retailer 12
-
€1,270 EUR
£1,122 GBP
View
Retailer 13
-
€1,842 EUR
A$3,179 AUD
View
Price last confirmed 31 days ago
B
Retailer 14
-
€2,060 EUR
$2,310 USD
View
B
Retailer 15
-
€2,492 EUR
$2,795 USD
View
Most Expensive
B
Brilliant Earth
21581582Y · Nov 2
€2,782 EUR
$3,120 USD
View
15 more retailers have this diamond
Prices start from €232 EURSave up to €2,550 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 Oval
€232 EUR