Cushion|Lab Grown|IGI

6.38ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG840632384

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632384

Diamond specifications and retailer prices

From $9,170 USD
As of October 26, 2026
Save $17,922 USD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $27,092 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 6.38ct lab-grown cushion diamond

This 6.38ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840632384 or 840632384. Listed at 7 retailers as of October 26, 2026, with prices from $9,170 to $27,092, a $17,922 spread on the same certified stone. Taylor and Hart lists it at $27,092. 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

6.38
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632384
Dimensions13.13 × 9.47 × 6.17 mm
L/W Ratio1.39
Girdle conditionFaceted
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
13.13 mm9.47 mm6.38 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632384
Side View
Table 59.0%Crown 33.7°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 65.2%

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 26
Current: $16,690 USD|Low: $9,170 USD|High: $27,092 USD|Avg: $16,180 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 30, 2026
Retailer 5$9,170 USD
Retailer 2$9,951 USD
Retailer 3$14,336 USD
Retailer 4$15,904 USD
Retailer 1$16,690 USD
Retailer 6$20,268 USD
Taylor and Hart$27,092 USD

19 data points across 7 retailers

7 retailers$9,170 USD to $27,092 USD

A
Cheapest Retailer
-
$9,170 USD
A
Retailer 2
-
$9,951 USD
£7,835 GBP
View
A
Retailer 3
-
$14,336 USD
€13,653 EUR
View
A
Retailer 4
-
$15,904 USD
£12,523 GBP
View
A
Retailer 5
-
$16,690 USD
View
B+
Retailer 6
-
$20,268 USD
View
Most Expensive
B+
Taylor and Hart
PB76BZQ · Oct 30
$27,092 USD
View
6 more retailers have this diamond
Prices start from $9,170 USDSave up to $17,922 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.

A
6.38ct Cushion
$9,170 USD