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Oval|Lab Grown|IGI

3.66ct F SI1 Oval Lab Grown Diamond

VG • F/SI1 • IGI LG847653874

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG847653874

Diamond specifications and retailer prices

From $671 SGD
$525 USD
As of November 1, 2026
Save $3,140 SGD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,811 SGD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 3.66ct lab-grown oval diamond

This 3.66ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG847653874 or 847653874. Listed at 16 retailers as of November 1, 2026, with prices from $671 to $3,811, a $3,140 spread on the same certified stone. Brilliant Earth lists it at $3,811. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.66
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847653874
Dimensions12.44 × 8.67 × 4.93 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.44 mm8.67 mm3.66 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847653874
Side View
Table 60.0%Crown 38.9°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 56.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,811 SGD|Low: $671 SGD|High: $6,804 SGD|Avg: $1,861 SGD|-44.0%
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
November 2, 2026
Retailer 6$671 SGD
Retailer 3$752 SGD
Retailer 12$752 SGD
Retailer 15$833 SGD
Retailer 13$1,010 SGD
Retailer 9$1,020 SGD
Retailer 10$1,281 SGD
Retailer 5$1,289 SGD
Retailer 16$1,320 SGD
Retailer 7$1,813 SGD
Retailer 2$1,891 SGD
Retailer 14$2,191 SGD
Retailer 8$2,707 SGD
Retailer 4$2,935 SGD
Retailer 11$3,477 SGD
Brilliant Earth$3,811 SGD

14 data points across 16 retailers

16 retailers$671 SGD to $3,811 SGD

A
Cheapest Retailer
-
$671 SGD
$525 USD
A
Retailer 2
-
$752 SGD
$588 USD
View
A
Retailer 3
-
$752 SGD
$588 USD
View
Final sale: no returns
A
Retailer 4
-
$833 SGD
$651 USD
View
A
Retailer 5
-
$1,010 SGD
$790 USD
View
A
Retailer 6
-
$1,020 SGD
£628 GBP
View
A
Retailer 7
-
$1,281 SGD
£789 GBP
View
B+
Retailer 8
-
$1,289 SGD
$1,008 USD
View
B+
Retailer 9
-
$1,320 SGD
$1,032 USD
View
B+
Retailer 10
-
$1,813 SGD
$1,418 USD
View
B+
Retailer 11
-
$1,891 SGD
$1,479 USD
View
B+
Retailer 12
-
$2,191 SGD
$1,713 USD
View
B
Retailer 13
-
$2,707 SGD
$2,117 USD
View
B
Retailer 14
-
$2,935 SGD
$2,295 USD
View
B
Retailer 15
-
$3,477 SGD
£2,141 GBP
View
Most Expensive
B
Brilliant Earth
22219862A · Nov 1
$3,811 SGD
$2,980 USD
View
15 more retailers have this diamond
Prices start from $671 SGDSave up to $3,140 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
3.66ct Oval
$671 SGD