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Oval|Lab Grown|GIA

4.01ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • GIA 7512180430

Certificate GIA 7512180430

Diamond specifications and retailer prices

From $1,778 SGD
$1,391 USD
As of October 31, 2026
Save $1,328 SGD (43%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,425 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.01ct lab-grown oval diamond

This 4.01ct 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 stated by the retailer rather than the lab and certified by GIA 7512180430. Listed at 6 retailers as of October 31, 2026, with a 75% 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

4.01
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 7512180430
Dimensions12.73 × 8.99 × 5.54 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This is a man-made diamond produced by CVD (Chemical Vapor Deposition) growth process and has evidence of post-growth treatments to change the color.
Key to symbols
Growth Remnant
Top View
12.73 mm8.99 mm4.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7512180430
Side View
Table 61.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,425 SGD|Low: $1,778 SGD|High: $8,795 SGD|Avg: $5,142 SGD|-4.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6$1,778 SGD
Retailer 5$2,010 SGD
Retailer 4$2,111 SGD
Retailer 2$2,656 SGD
Retailer 3$3,106 SGD
Retailer 9$7,415 SGD
Retailer 10$7,415 SGD
Retailer 7$8,180 SGD
Retailer 8$8,182 SGD
Brilliant Earth$8,425 SGD

17 data points across 10 retailers

6 retailers$1,778 SGD to $3,106 SGD

B+
Cheapest Retailer
-
$1,778 SGD
$1,391 USD
B+
Retailer 2
-
$2,010 SGD
$1,572 USD
View
B+
Retailer 3
-
$2,111 SGD
HK$12,900 HKD
View
B+
Retailer 4
-
$2,656 SGD
€1,979 EUR
View
B
Retailer 5
-
$3,106 SGD
A$3,738 AUD
View
Most Expensive
Brilliant Earth
13161788A · Oct 31
$8,425 SGD
$6,590 USD
View
Price under review
5 more retailers have this diamond
Prices start from $1,778 SGDSave up to $1,328 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+
4.01ct Oval
$1,778 SGD