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Marquise|Lab Grown|IGI

4.05ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG831618905

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831618905

Diamond specifications and retailer prices

From $889 SGD
£548 GBP
As of October 30, 2026
Save $10,412 SGD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,301 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.05ct lab-grown marquise diamond

This 4.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831618905 or 831618905. Listed at 17 retailers as of October 30, 2026, with prices from $889 to $11,301, a $10,412 spread on the same certified stone. Brilliant Earth lists it at $11,301. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.05
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831618905
Dimensions16.01 × 8.28 × 5.28 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.01 mm8.28 mm4.05 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831618905
Side View
Table 60.0%Crown 34.2°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
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 30
Current: $11,301 SGD|Low: $886 SGD|High: $11,301 SGD|Avg: $2,839 SGD
Brilliant Earth
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 10$889 SGD
Retailer 9$992 SGD
Retailer 4$1,253 SGD
Retailer 11$1,646 SGD
Retailer 17$1,670 SGD
Retailer 14$1,766 SGD
Retailer 13$2,187 SGD
Retailer 2$2,201 SGD
Retailer 8$2,290 SGD
Retailer 15$2,530 SGD
Retailer 16$3,195 SGD
Retailer 3$3,372 SGD
Retailer 6$3,503 SGD
Retailer 7$3,543 SGD
Retailer 12$4,056 SGD
Retailer 5$4,086 SGD
Brilliant Earth$11,301 SGD

23 data points across 17 retailers

17 retailers$889 SGD to $11,301 SGD

A
Cheapest Retailer
-
$889 SGD
£548 GBP
A
Retailer 2
-
$992 SGD
$776 USD
View
Final sale: no returns
A
Retailer 3
-
$1,253 SGD
$980 USD
View
A
Retailer 4
-
$1,646 SGD
£1,014 GBP
View
A
Retailer 5
-
$1,670 SGD
$1,306 USD
View
A
Retailer 6
-
$1,766 SGD
€1,316 EUR
View
A
Retailer 7
-
$2,187 SGD
ZAR 27,632 ZAR
View
B+
Retailer 8
-
$2,201 SGD
A$2,649 AUD
View
B+
Retailer 9
-
$2,290 SGD
$1,791 USD
View
B+
Retailer 10
-
$2,530 SGD
$1,979 USD
View
B
Retailer 11
-
$3,195 SGD
£1,968 GBP
View
B+
Retailer 12
-
$3,372 SGD
$2,638 USD
View
B+
Retailer 13
-
$3,503 SGD
$2,740 USD
View
B+
Retailer 14
-
$3,543 SGD
$2,771 USD
View
B
Retailer 15
-
$4,056 SGD
£2,498 GBP
View
Retailer 16
-
$4,086 SGD
A$4,917 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21799680A · Oct 30
$11,301 SGD
$8,840 USD
View
16 more retailers have this diamond
Prices start from $889 SGDSave up to $10,412 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
4.05ct Marquise
$889 SGD