CaratHunter
Plans
Oval|Lab Grown|IGI

1.66ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG361286015

Certificate IGI LG361286015

Diamond specifications and retailer prices

From $3,834 USD
Save $2,156 USD (36%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $5,990 USD at Brilliant Earth
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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG361286015 or 361286015. Listed at 2 retailers, with prices from $3,834 to $5,990 at Brilliant Earth, a $2,156 spread on the same certified stone. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG361286015
Dimensions9.52 × 6.63 × 4.15 mm
L/W Ratio1.44
Culet sizeNone
Top View
9.52 mm6.63 mm1.66 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG361286015
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
C
Average
Compare with similar diamonds
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $5,990 USD|Low: $3,834 USD|High: $5,990 USD|Avg: $5,271 USD
Brilliant Earth
Retailer 2
September 26, 2026
Retailer 2$3,834 USD
Brilliant Earth$5,990 USD

2 data points across 2 retailers

2 retailers$3,834 USD to $5,990 USD

C
Cheapest Retailer
-
$3,834 USD
Most Expensive
D
Brilliant Earth
20574785Y · Oct 1
$5,990 USD
View
1 more retailer has this diamond
Prices start from $3,834 USDSave up to $2,156 USD

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.

C
1.66ct Oval
$3,834 USD