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Cushion|Lab Grown|IGI

4.05ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG797604470

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG797604470

Diamond specifications and retailer prices

From $6,993 SGD
$5,470 USD
As of October 30, 2026
Save $14,379 SGD (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $21,372 SGD at Riddles Jewelry · As of October 29, 2026
View at Riddles Jewelry

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG797604470 or 797604470. Listed at 8 retailers as of October 29, 2026, with prices from $6,993 to $21,372, a $14,379 spread on the same certified stone. Riddles Jewelry lists it at $21,372. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797604470
Dimensions11.34 × 8.35 × 5.56 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.34 mm8.35 mm4.05 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797604470
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.6%

Caratlytics Score

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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: $6,979 SGD|Low: $5,482 SGD|High: $39,434 SGD|Avg: $15,153 SGD|-16.9%
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
Riddles Jewelry
October 18, 2026
Retailer 1$6,979 SGD
Retailer 11$6,993 SGD
Retailer 10$7,433 SGD
Retailer 14$7,693 SGD
Retailer 8$7,741 SGD
Retailer 16$8,399 SGD
Retailer 15$10,127 SGD
Retailer 2$10,482 SGD
Retailer 3$12,081 SGD
Retailer 9$13,423 SGD
Retailer 6$16,736 SGD
Retailer 13$19,363 SGD
Retailer 12$20,435 SGD
Riddles Jewelry$21,372 SGD
Retailer 5$22,113 SGD
Retailer 7$28,266 SGD
Retailer 4$39,434 SGD

9 data points across 17 retailers

8 retailers$6,993 SGD to $21,372 SGD

Retailer 1
-
$6,979 SGD
$5,459 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$6,993 SGD
$5,470 USD
View
A
Retailer 3
-
$7,433 SGD
CA$8,075 CAD
View
A
Retailer 4
-
$7,693 SGD
$6,018 USD
View
Final sale: no returns
B+
Retailer 5
-
$13,423 SGD
$10,500 USD
View
B
Retailer 6
-
$19,363 SGD
$15,146 USD
View
B
Retailer 7
-
$20,435 SGD
$15,985 USD
View
Most Expensive
B
Riddles Jewelry
1976264165 · Oct 29
$21,372 SGD
$16,718 USD
View
7 more retailers have this diamond
Prices start from $6,993 SGDSave up to $14,379 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 Cushion
$6,993 SGD