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Round|Lab Grown|IGI

3.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG616408199

Shape and cutting style on the report: Round brilliant

Certificate IGI LG616408199

Diamond specifications and retailer prices

From $579 SGD
$453 USD
As of October 27, 2026
Save $4,012 SGD (87%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,021 SGD at Jared · As of October 28, 2026
View at Jared

About this 3.51ct lab-grown round diamond

This 3.51ct 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 LG616408199 or 616408199. Listed at 11 retailers as of October 27, 2026, with a 692% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG616408199
Dimensions9.75 × 9.78 × 5.96 mm
L/W Ratio1.00
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
9.75 mm9.78 mm3.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG616408199
Side View
Table 59.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

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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: $2,615 SGD|Low: $428 SGD|High: $4,758 SGD|Avg: $1,913 SGD|-3.0%
Retailer 1
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
October 29, 2026
Retailer 15$518 SGD
Retailer 10$579 SGD
Retailer 2$600 SGD
Retailer 8$991 SGD
Retailer 9$1,017 SGD
Retailer 13$1,017 SGD
Retailer 6$1,139 SGD
Retailer 4$1,269 SGD
Retailer 5$1,336 SGD
Retailer 11$1,799 SGD
Retailer 12$2,276 SGD
Retailer 1$2,615 SGD
Retailer 7$2,925 SGD
Retailer 3$4,246 SGD
Retailer 14$4,591 SGD

24 data points across 15 retailers

11 retailers$579 SGD to $4,591 SGD

A
Retailer 1
-
$518 SGD
$405 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$579 SGD
$453 USD
View
A
Retailer 3
-
$991 SGD
£610 GBP
View
A
Retailer 4
-
$1,017 SGD
$795 USD
View
B+
Retailer 5
-
$1,017 SGD
$795 USD
View
Retailer 6
-
$1,799 SGD
$1,407 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$2,276 SGD
$1,780 USD
View
B
Retailer 8
-
$2,615 SGD
£1,610 GBP
View
B
Retailer 9
-
$4,246 SGD
$3,320 USD
View
B
Retailer 10
-
$4,591 SGD
$3,590 USD
View
Most Expensive
Jared
149932601 · Oct 28
$7,021 SGD
$5,490 USD
View
Price under review
10 more retailers have this diamond
Prices start from $579 SGDSave up to $4,012 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
3.51ct Round
$579 SGD