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Oval|Lab Grown|IGI

1.66ct E VVS1 Oval Lab Grown Diamond

ID • E/VVS1 • IGI LG825654007

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG825654007

Diamond specifications and retailer prices

From $277 USD
As of October 29, 2026
Save $2,013 USD (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,290 USD at Brilliant Earth · As of October 31, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG825654007 or 825654007. Listed at 25 retailers as of October 29, 2026, with prices from $277 to $2,290, a $2,013 spread on the same certified stone. Brilliant Earth lists it at $2,290. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825654007
Dimensions9.65 × 6.44 × 4.15 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.65 mm6.44 mm1.66 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825654007
Side View
Table 62.0%Crown 33.7°Girdle: Slightly ThickPavilion 42.1°Culet: NoneDepth 64.4%

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: Oct 29
Current: $2,290 USD|Low: $266 USD|High: $2,360 USD|Avg: $855 USD|-3.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 5$277 USD
Retailer 8$309 USD
Retailer 11$321 USD
Retailer 9$343 USD
Retailer 4$365 USD
Retailer 14$460 USD
Retailer 18$500 USD
Retailer 19$540 USD
Retailer 17$589 USD
Retailer 2$604 USD
Retailer 12$685 USD
Retailer 16$798 USD
Retailer 13$822 USD
Retailer 10$1,103 USD
Retailer 6$1,320 USD
Retailer 15$1,373 USD
Retailer 20$1,382 USD
Retailer 7$1,438 USD
Retailer 3$1,485 USD
Brilliant Earth$2,290 USD

40 data points across 20 retailers

25 retailers$277 USD to $2,290 USD

A
Cheapest Retailer
-
$277 USD
A
Retailer 2
-
$309 USD
View
Final sale: no returns
A
Retailer 3
-
$321 USD
View
A
Retailer 4
-
$343 USD
View
A
Retailer 5
-
$343 USD
View
Retailer 6
-
$365 USD
£287 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
$460 USD
View
A
Retailer 8
-
$500 USD
View
A
Retailer 9
-
$540 USD
€514 EUR
View
A
Retailer 10
-
$589 USD
ZAR 9,520 ZAR
View
A
Retailer 11
-
$604 USD
£476 GBP
View
A
Retailer 12
-
$685 USD
View
B+
Retailer 13
-
$723 USD
View
B+
Retailer 14
-
$739 USD
View
B+
Retailer 15
-
$798 USD
A$1,227 AUD
View
B+
Retailer 16
-
$822 USD
View
B+
Retailer 17
-
$1,103 USD
View
B+
Retailer 18
-
$1,153 USD
View
B
Retailer 19
-
$1,320 USD
View
B+
Retailer 20
-
$1,373 USD
A$2,112 AUD
View
B
Retailer 21
-
$1,382 USD
£1,088 GBP
View
B
Retailer 22
-
$1,424 USD
View
B
Retailer 23
-
$1,438 USD
View
B+
Retailer 24
-
$1,485 USD
View
Most Expensive
B
Brilliant Earth
21202258A · Oct 31
$2,290 USD
View
24 more retailers have this diamond
Prices start from $277 USDSave up to $2,013 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
$277 USD