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Oval|Lab Grown|IGI

1.66ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG782601600

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG782601600

Diamond specifications and retailer prices

From $342 USD
As of November 1, 2026
Save $3,633 USD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,975 USD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG782601600 or 782601600. Listed at 24 retailers as of October 28, 2026, with prices from $342 to $3,975, a $3,633 spread on the same certified stone. Rare Carat lists it at $3,975. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782601600
Dimensions9.42 × 6.67 × 4.19 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
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
9.42 mm6.67 mm1.66 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782601600
Side View
Table 60.0%Crown 34.5°Girdle: MED-THKPavilion 41.1°Culet: NoneDepth 62.8%

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: Nov 1
Current: $3,975 USD|Low: $334 USD|High: $4,015 USD|Avg: $1,160 USD|-1.0%
Rare Carat
Retailer 2
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Retailer 22
November 2, 2026
Retailer 8$342 USD
Retailer 16$395 USD
Retailer 3$397 USD
Retailer 15$424 USD
Retailer 21$424 USD
Retailer 19$575 USD
Retailer 6$684 USD
Retailer 5$686 USD
Retailer 2$732 USD
Retailer 20$752 USD
Retailer 13$755 USD
Retailer 9$1,217 USD
Retailer 7$1,244 USD
Retailer 14$1,364 USD
Retailer 11$1,407 USD
Retailer 22$1,480 USD
Retailer 12$1,495 USD
Retailer 10$1,646 USD
Retailer 17$1,701 USD
Retailer 4$2,014 USD
Retailer 18$3,390 USD
Rare Carat$3,975 USD

23 data points across 22 retailers

24 retailers$342 USD to $3,975 USD

A
Cheapest Retailer
-
$342 USD
A
Retailer 2
-
$395 USD
View
Final sale: no returns
A
Retailer 3
-
$397 USD
View
Retailer 4
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$424 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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$424 USD
View
A
Retailer 6
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$575 USD
View
A
Retailer 7
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$684 USD
View
A
Retailer 8
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$686 USD
View
A
Retailer 9
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$732 USD
ZAR 11,822 ZAR
View
A
Retailer 10
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$752 USD
€716 EUR
View
A
Retailer 11
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$755 USD
£595 GBP
View
Retailer 12
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$1,075 USD
View
Price last confirmed 23 days ago
B+
Retailer 13
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$1,217 USD
View
B+
Retailer 14
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$1,244 USD
View
B+
Retailer 15
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$1,364 USD
View
B+
Retailer 16
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$1,407 USD
View
B+
Retailer 17
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$1,480 USD
View
B+
Retailer 18
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$1,495 USD
SGD 2,020 SGD
View
B+
Retailer 19
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$1,640 USD
View
B
Retailer 20
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$1,646 USD
£1,296 GBP
View
B+
Retailer 21
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$1,701 USD
£1,339 GBP
View
B+
Retailer 22
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$2,014 USD
View
B
Retailer 23
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$3,390 USD
View
Most Expensive
B
Rare Carat
MR-168077 · Oct 28
$3,975 USD
View
23 more retailers have this diamond
Prices start from $342 USDSave up to $3,633 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.66ct Oval
$342 USD