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Cushion|Lab Grown|IGI

4.09ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG665410165

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG665410165

Diamond specifications and retailer prices

From $9,680 USD
As of October 29, 2026
3 retailers carry this diamond
Most expensive: $12,370 USD at Novita Diamonds · As of July 4, 2026
View at Novita Diamonds

About this 4.09ct lab-grown cushion diamond

This 4.09ct lab-grown cushion 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 LG665410165 or 665410165. Listed at 3 retailers as of October 29, 2026. 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

4.09
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665410165
Dimensions10.52 × 8.77 × 5.74 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.52 mm8.77 mm4.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665410165
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 65.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $12,370 USD|Low: $2,537 USD|High: $32,090 USD|Avg: $10,632 USD|-9.2%
Novita Diamonds
Retailer 2
Retailer 3
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Retailer 8
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August 18, 2026
Retailer 16$2,537 USD
Retailer 14$3,840 USD
Retailer 3$4,355 USD
Retailer 11$4,514 USD
Retailer 10$4,958 USD
Retailer 5$5,094 USD
Retailer 2$5,776 USD
Retailer 9$6,067 USD
Retailer 15$6,465 USD
Retailer 7$7,986 USD
Retailer 12$9,680 USD
Retailer 13$10,133 USD
Novita Diamonds$12,370 USD
Retailer 8$14,244 USD
Retailer 6$14,294 USD
Retailer 4$21,830 USD

72 data points across 16 retailers

3 retailers

Retailer 1
-
$6,067 USD
Price last confirmed 73 days ago
B+
Retailer 2
-
$9,680 USD
View
Most Expensive
Novita Diamonds
cert_665410165 · Jul 4
$12,370 USD
A$19,030 AUD
View
Price last confirmed 118 days ago
2 more retailers have this diamond
Prices start from $9,680 USD

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+
4.09ct Cushion
$9,680 USD