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Round|Lab Grown|IGI

4.28ct D IF Round Lab Grown Diamond

EX • D/IF • IGI LG7516335212

Certificate IGI LG7516335212

Diamond specifications and retailer prices

From $30,707 SGD
$24,020 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $30,707 SGD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 4.28ct lab-grown round diamond

This 4.28ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG7516335212 or 7516335212. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.28
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG7516335212
Dimensions10.42 × 10.38 × 6.42 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Top View
10.42 mm10.38 mm4.28 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG7516335212
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $30,707 SGD|Low: $30,707 SGD|High: $31,666 SGD|Avg: $31,187 SGD|-3.0%
October 11, 2026
Brilliant Earth$30,707 SGD

2 data points across 1 retailer

1 retailer

B
Brilliant Earth
16506776A · Oct 29
$30,707 SGD
$24,020 USD
View

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B
4.28ct Round
$30,707 SGD