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Marquise|Lab Grown|IGI

4.05ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG817696109

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817696109

Diamond specifications and retailer prices

From $4,592 SGD
$3,592 USD
As of October 31, 2026
Save $13,054 SGD (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $19,232 SGD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817696109 or 817696109. Listed at 17 retailers as of October 31, 2026, with a 284% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817696109
Dimensions16.31 × 8.38 × 5.01 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.31 mm8.38 mm4.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817696109
Side View
Table 60.0%Crown 37.8°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $16,635 SGD|Low: $4,592 SGD|High: $18,151 SGD|Avg: $9,462 SGD|-2.8%
Retailer 1
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
October 31, 2026
Retailer 10$4,592 SGD
Retailer 14$4,794 SGD
Retailer 3$4,979 SGD
Retailer 11$6,326 SGD
Retailer 13$6,726 SGD
Retailer 7$6,916 SGD
Retailer 9$7,431 SGD
Retailer 4$8,280 SGD
Retailer 2$8,736 SGD
Retailer 16$10,170 SGD
Retailer 8$10,437 SGD
Retailer 6$11,440 SGD
Retailer 5$12,178 SGD
Retailer 12$16,031 SGD
Retailer 1$16,635 SGD
Retailer 15$17,646 SGD

17 data points across 16 retailers

17 retailers$4,592 SGD to $17,646 SGD

A+
Cheapest Retailer
-
$4,592 SGD
$3,592 USD
Final sale: no returns
A
Retailer 2
-
$4,794 SGD
$3,750 USD
View
A
Retailer 3
-
$4,979 SGD
$3,895 USD
View
A
Retailer 4
-
$6,326 SGD
£3,896 GBP
View
A
Retailer 5
-
$6,726 SGD
$5,261 USD
View
A
Retailer 6
-
$6,916 SGD
$5,410 USD
View
A
Retailer 7
-
$7,431 SGD
$5,813 USD
View
A
Retailer 8
-
$8,280 SGD
£5,100 GBP
View
A
Retailer 9
-
$8,736 SGD
€6,508 EUR
View
A
Retailer 10
-
$10,170 SGD
ZAR 128,519 ZAR
View
Retailer 11
-
$10,437 SGD
A$12,560 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$11,440 SGD
$8,949 USD
View
A
Retailer 13
-
$12,178 SGD
£7,501 GBP
View
B+
Retailer 14
-
$16,031 SGD
View
B+
Retailer 15
-
$16,635 SGD
$13,012 USD
View
B+
Retailer 16
-
$17,646 SGD
$13,803 USD
View
Most Expensive
Novita Diamonds
cert_817696109 · Oct 8
$19,232 SGD
A$23,144 AUD
View
Price last confirmed 23 days ago
16 more retailers have this diamond
Prices start from $4,592 SGDSave up to $13,054 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
$4,592 SGD