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Cushion|Lab Grown|IGI

1.58ct F SI2 Cushion Lab Grown Diamond

EX • F/SI2 • IGI LG12674416

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12674416

Diamond specifications and retailer prices

From $1,173 SGD
CA$1,274 CAD
As of November 2, 2026
Save $378 SGD (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,551 SGD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 1.58ct lab-grown cushion diamond

This 1.58ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12674416 or 12674416. Listed at 3 retailers as of November 1, 2026, with prices from $1,173 to $1,551, a $378 spread on the same certified stone. The Diamond Guys lists it at $1,551. 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

1.58
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12674416
Dimensions6.76 × 6.49 × 4.36 mm
L/W Ratio1.04
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
6.76 mm6.49 mm1.58 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG12674416
Side View
Table 60.5%Crown 38°Girdle: STK-UNDPavilion 36.5°Culet: NoneDepth 67.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $744 SGD|Low: $445 SGD|High: $3,055 SGD|Avg: $1,215 SGD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
September 18, 2026
Retailer 5$445 SGD
Retailer 3$592 SGD
Retailer 1$744 SGD
Retailer 6$802 SGD
Retailer 7$975 SGD
Retailer 2$1,096 SGD
Retailer 4$1,173 SGD
The Diamond Guys$1,551 SGD

32 data points across 8 retailers

3 retailers$1,173 SGD to $1,551 SGD

Retailer 1
-
$1,096 SGD
$857 USD
Price last confirmed 54 days ago
B
Retailer 2
-
$1,173 SGD
CA$1,274 CAD
View
Most Expensive
B
The Diamond Guys
1779253354 · Nov 1
$1,551 SGD
$1,213 USD
View
2 more retailers have this diamond
Prices start from $1,173 SGDSave up to $378 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.

B
1.58ct Cushion
$1,173 SGD