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Round|Lab Grown|IGI

3.66ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG611370735

Shape and cutting style on the report: Round brilliant

Certificate IGI LG611370735

Diamond specifications and retailer prices

From $588 SGD
$460 USD
As of October 27, 2026
Save $4,080 SGD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,668 SGD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.66ct lab-grown round diamond

This 3.66ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG611370735 or 611370735. Listed at 10 retailers as of October 27, 2026, with prices from $588 to $4,668, a $4,080 spread on the same certified stone. Do Amore Diamonds lists it at $4,668. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.66
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG611370735
Dimensions10.03 × 9.93 × 5.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.03 mm9.93 mm3.66 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG611370735
Side View
Table 59.0%Crown 32.8°Girdle: Med.Pavilion 40.8°Culet: NoneDepth 59.9%

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: Oct 27
Current: $4,668 SGD|Low: $431 SGD|High: $4,783 SGD|Avg: $1,828 SGD|-2.4%
Do Amore Diamonds
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
October 29, 2026
Retailer 13$526 SGD
Retailer 8$588 SGD
Retailer 3$602 SGD
Retailer 11$1,031 SGD
Retailer 7$1,036 SGD
Retailer 5$1,233 SGD
Retailer 6$1,329 SGD
Retailer 4$1,365 SGD
Retailer 12$1,664 SGD
Retailer 9$1,828 SGD
Retailer 10$2,311 SGD
Retailer 2$2,656 SGD
Retailer 14$3,236 SGD
Do Amore Diamonds$4,668 SGD

23 data points across 14 retailers

10 retailers$588 SGD to $4,668 SGD

Retailer 1
-
$526 SGD
$411 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$588 SGD
$460 USD
View
B+
Retailer 3
-
$1,031 SGD
$806 USD
View
A
Retailer 4
-
$1,036 SGD
$810 USD
View
B+
Retailer 5
-
$1,664 SGD
$1,301 USD
View
Retailer 6
-
$1,828 SGD
$1,429 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$2,311 SGD
$1,807 USD
View
B
Retailer 8
-
$2,656 SGD
£1,635 GBP
View
B
Retailer 9
-
$3,236 SGD
$2,530 USD
View
Most Expensive
B
Do Amore Diamonds
27-6F588CD1B · Oct 29
$4,668 SGD
$3,650 USD
View
9 more retailers have this diamond
Prices start from $588 SGDSave up to $4,080 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 Round
$588 SGD