Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG818650547

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818650547

Diamond specifications and retailer prices

From $272 USD
As of October 30, 2026
Save $1,061 USD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,333 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818650547 or 818650547. Listed at 20 retailers as of October 30, 2026, with prices from $272 to $1,333, a $1,061 spread on the same certified stone. Reve Diamonds lists it at $1,333. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818650547
Dimensions9.68 × 6.28 × 4.11 mm
L/W Ratio1.54
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.68 mm6.28 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818650547
Side View
Table 62.0%Crown 38.4°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $573 USD|Low: $272 USD|High: $1,341 USD|Avg: $810 USD|+3.4%
Retailer 1
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
Reve Diamonds
October 31, 2026
Retailer 3$272 USD
Retailer 15$333 USD
Retailer 10$354 USD
Retailer 9$408 USD
Retailer 13$501 USD
Retailer 11$519 USD
Retailer 1$573 USD
Retailer 14$605 USD
Retailer 12$704 USD
Retailer 2$755 USD
Retailer 4$1,023 USD
Retailer 7$1,065 USD
Retailer 8$1,189 USD
Retailer 5$1,217 USD
Retailer 16$1,229 USD
Retailer 6$1,240 USD
Reve Diamonds$1,333 USD

39 data points across 17 retailers

20 retailers$272 USD to $1,333 USD

Retailer 1
-
$246 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$272 USD
View
Final sale: no returns
Retailer 3
-
$285 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$301 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$333 USD
HK$2,600 HKD
View
A
Retailer 6
-
$354 USD
£279 GBP
View
B+
Retailer 7
-
$408 USD
View
A
Retailer 8
-
$501 USD
€477 EUR
View
A
Retailer 9
-
$519 USD
ZAR 8,382 ZAR
View
A
Retailer 10
-
$573 USD
£451 GBP
View
A
Retailer 11
-
$605 USD
View
A
Retailer 12
-
$704 USD
A$1,083 AUD
View
B+
Retailer 13
-
$755 USD
View
Retailer 14
-
$981 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$1,023 USD
View
Retailer 16
-
$1,065 USD
View
Price last confirmed 33 days ago
B
Retailer 17
-
$1,217 USD
£958 GBP
View
B
Retailer 18
-
$1,229 USD
View
B
Retailer 19
-
$1,240 USD
View
Most Expensive
B
Reve Diamonds
61110BE7F · Oct 30
$1,333 USD
View
19 more retailers have this diamond
Prices start from $272 USDSave up to $1,061 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
$272 USD