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Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG836674985

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836674985

Diamond specifications and retailer prices

From $318 SGD
$249 USD
As of November 1, 2026
Save $1,262 SGD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,907 SGD at Queensmith · As of October 20, 2026
View at Queensmith

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 LG836674985 or 836674985. Listed at 20 retailers as of November 1, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836674985
Dimensions9.31 × 6.61 × 4.19 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.31 mm6.61 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836674985
Side View
Table 62.0%Crown 37.5°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 63.4%

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: $2,907 SGD|Low: $294 SGD|High: $2,907 SGD|Avg: $1,073 SGD
Queensmith
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
November 2, 2026
Retailer 5$294 SGD
Retailer 16$354 SGD
Retailer 8$366 SGD
Retailer 4$631 SGD
Retailer 12$661 SGD
Retailer 9$681 SGD
Retailer 2$750 SGD
Retailer 13$776 SGD
Retailer 14$919 SGD
Retailer 11$1,271 SGD
Retailer 3$1,333 SGD
Retailer 6$1,381 SGD
Retailer 7$1,461 SGD
Retailer 15$1,551 SGD
Retailer 10$1,580 SGD
Queensmith$2,907 SGD

39 data points across 16 retailers

20 retailers$318 SGD to $1,580 SGD

Retailer 1
-
$294 SGD
$230 USD
Price last confirmed 15 days ago
Retailer 2
-
$295 SGD
$231 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
$318 SGD
$249 USD
View
Retailer 4
-
$343 SGD
$268 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
$354 SGD
$277 USD
View
Final sale: no returns
Retailer 6
-
$362 SGD
$283 USD
View
Price last confirmed 36 days ago
Retailer 7
-
$364 SGD
$285 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$661 SGD
$517 USD
View
A
Retailer 9
-
$681 SGD
ZAR 8,597 ZAR
View
A
Retailer 10
-
$750 SGD
£462 GBP
View
A
Retailer 11
-
$776 SGD
$607 USD
View
B+
Retailer 12
-
$919 SGD
A$1,105 AUD
View
Retailer 13
-
$1,174 SGD
$918 USD
View
Price last confirmed 15 days ago
Retailer 14
-
$1,178 SGD
$921 USD
View
Price last confirmed 35 days ago
B+
Retailer 15
-
$1,271 SGD
$994 USD
View
B+
Retailer 16
-
$1,333 SGD
$1,042 USD
View
Retailer 17
-
$1,381 SGD
A$1,661 AUD
View
Price last confirmed 32 days ago
B
Retailer 18
-
$1,551 SGD
$1,213 USD
View
B
Retailer 19
-
$1,580 SGD
£973 GBP
View
Most Expensive
Queensmith
LG836674985 · Oct 20
$2,907 SGD
£1,790 GBP
View
Price last confirmed 13 days ago
19 more retailers have this diamond
Prices start from $318 SGDSave up to $1,262 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
$318 SGD