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Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG823666729

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG823666729

Diamond specifications and retailer prices

From $485 SGD
$379 USD
As of November 1, 2026
Save $2,124 SGD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,609 SGD 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG823666729 or 823666729. Listed at 24 retailers as of October 31, 2026, with prices from $485 to $2,609, a $2,124 spread on the same certified stone. Brilliant Earth lists it at $2,609. 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
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823666729
Dimensions9.11 × 7.04 × 4.25 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.11 mm7.04 mm1.66 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823666729
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

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: Nov 1
Current: $2,609 SGD|Low: $485 SGD|High: $2,737 SGD|Avg: $1,306 SGD|-4.7%
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
Retailer 21
Retailer 22
November 2, 2026
Retailer 14$485 SGD
Retailer 7$542 SGD
Retailer 9$542 SGD
Retailer 3$601 SGD
Retailer 4$601 SGD
Retailer 21$793 SGD
Retailer 10$806 SGD
Retailer 6$834 SGD
Retailer 18$961 SGD
Retailer 15$979 SGD
Retailer 2$1,036 SGD
Retailer 13$1,078 SGD
Retailer 20$1,394 SGD
Retailer 19$1,481 SGD
Retailer 22$1,507 SGD
Retailer 12$1,912 SGD
Retailer 5$1,931 SGD
Retailer 8$1,980 SGD
Retailer 17$2,097 SGD
Retailer 11$2,256 SGD
Retailer 16$2,347 SGD
Brilliant Earth$2,609 SGD

29 data points across 22 retailers

24 retailers$485 SGD to $2,609 SGD

A
Cheapest Retailer
-
$485 SGD
$379 USD
A
Retailer 2
-
$542 SGD
$424 USD
View
Final sale: no returns
A
Retailer 3
-
$542 SGD
$424 USD
View
A
Retailer 4
-
$601 SGD
$470 USD
View
Retailer 5
-
$601 SGD
$470 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$793 SGD
$620 USD
View
A
Retailer 7
-
$806 SGD
$630 USD
View
A
Retailer 8
-
$834 SGD
$652 USD
View
A
Retailer 9
-
$961 SGD
€716 EUR
View
B+
Retailer 10
-
$979 SGD
A$1,178 AUD
View
B+
Retailer 11
-
$1,036 SGD
ZAR 13,087 ZAR
View
B+
Retailer 12
-
$1,078 SGD
£664 GBP
View
B+
Retailer 13
-
$1,394 SGD
A$1,677 AUD
View
Retailer 14
-
$1,433 SGD
$1,120 USD
View
Price last confirmed 54 days ago
B+
Retailer 15
-
$1,481 SGD
A$1,782 AUD
View
B
Retailer 16
-
$1,507 SGD
$1,178 USD
View
Retailer 17
-
$1,835 SGD
$1,435 USD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$1,912 SGD
View
B
Retailer 19
-
$1,931 SGD
$1,510 USD
View
B
Retailer 20
-
$1,980 SGD
$1,548 USD
View
B
Retailer 21
-
$2,097 SGD
$1,640 USD
View
B
Retailer 22
-
$2,256 SGD
$1,764 USD
View
B
Retailer 23
-
$2,347 SGD
£1,445 GBP
View
Most Expensive
B
Brilliant Earth
21127214A · Oct 31
$2,609 SGD
$2,040 USD
View
23 more retailers have this diamond
Prices start from $485 SGDSave up to $2,124 SGD

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
$485 SGD