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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 $354 SGD
$277 USD
As of November 1, 2026
Save $2,573 SGD (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,928 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 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 31, 2026, with prices from $354 to $2,928, a $2,573 spread on the same certified stone. Brilliant Earth lists it at $2,928. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,928 SGD|Low: $340 SGD|High: $3,017 SGD|Avg: $1,095 SGD|-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$354 SGD
Retailer 8$395 SGD
Retailer 11$410 SGD
Retailer 9$438 SGD
Retailer 4$466 SGD
Retailer 15$588 SGD
Retailer 19$639 SGD
Retailer 20$690 SGD
Retailer 18$753 SGD
Retailer 13$772 SGD
Retailer 12$876 SGD
Retailer 17$1,020 SGD
Retailer 14$1,051 SGD
Retailer 10$1,410 SGD
Retailer 6$1,687 SGD
Retailer 16$1,755 SGD
Retailer 2$1,757 SGD
Retailer 7$1,838 SGD
Retailer 3$1,898 SGD
Brilliant Earth$2,928 SGD

40 data points across 20 retailers

25 retailers$354 SGD to $2,928 SGD

A
Cheapest Retailer
-
$354 SGD
$277 USD
A
Retailer 2
-
$395 SGD
$309 USD
View
Final sale: no returns
A
Retailer 3
-
$410 SGD
$321 USD
View
Retailer 4
-
$438 SGD
$343 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$438 SGD
$343 USD
View
Retailer 6
-
$466 SGD
£287 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
$588 SGD
$460 USD
View
A
Retailer 8
-
$639 SGD
$500 USD
View
A
Retailer 9
-
$690 SGD
€514 EUR
View
A
Retailer 10
-
$753 SGD
ZAR 9,520 ZAR
View
A
Retailer 11
-
$772 SGD
£476 GBP
View
A
Retailer 12
-
$876 SGD
$685 USD
View
B+
Retailer 13
-
$924 SGD
$723 USD
View
B+
Retailer 14
-
$945 SGD
$739 USD
View
B+
Retailer 15
-
$1,020 SGD
A$1,227 AUD
View
B+
Retailer 16
-
$1,051 SGD
$822 USD
View
B+
Retailer 17
-
$1,410 SGD
$1,103 USD
View
B+
Retailer 18
-
$1,474 SGD
$1,153 USD
View
B
Retailer 19
-
$1,687 SGD
$1,320 USD
View
B+
Retailer 20
-
$1,755 SGD
A$2,112 AUD
View
B
Retailer 21
-
$1,757 SGD
£1,082 GBP
View
B
Retailer 22
-
$1,820 SGD
$1,424 USD
View
B
Retailer 23
-
$1,838 SGD
$1,438 USD
View
B+
Retailer 24
-
$1,898 SGD
$1,485 USD
View
Most Expensive
B
Brilliant Earth
21202258A · Oct 31
$2,928 SGD
$2,290 USD
View
24 more retailers have this diamond
Prices start from $354 SGDSave up to $2,573 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
$354 SGD