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Oval|Lab Grown|IGI

4.28ct E SI1 Oval Lab Grown Diamond

EX • E/SI1

Diamond specifications and retailer prices

From $641 USD
£505 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $641 USD at Moon Ocean
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 Moon Ocean

About this 4.28ct lab-grown oval diamond

This 4.28ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. 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. 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

4.28
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions13.44 × 8.96 × 0.00 mm
L/W Ratio1.50
Top View
13.44 mm8.96 mm4.28 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $641 USD|Low: $541 USD|High: $2,030 USD|Avg: $999 USD|-1.7%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 2$541 USD
Retailer 4$631 USD
Moon Ocean$641 USD
Retailer 5$1,230 USD
Retailer 3$2,030 USD

40 data points across 5 retailers

1 retailer

B+
Moon Ocean
NVL-E3AA6C982-263 · Oct 29
$641 USD
£505 GBP
View

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+
4.28ct Oval
$641 USD