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Cushion|Lab Grown|IGI

6.47ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG660415018

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG660415018

Diamond specifications and retailer prices

From $15,678 USD
As of October 30, 2026
Save $41,258 USD (72%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $56,936 USD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 6.47ct lab-grown cushion diamond

This 6.47ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG660415018 or 660415018. Listed at 19 retailers as of October 27, 2026, with prices from $15,678 to $56,936, a $41,258 spread on the same certified stone. Wholesale Diamonds Direct lists it at $56,936. 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

6.47
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660415018
Dimensions12.28 × 10.24 × 6.62 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
12.28 mm10.24 mm6.47 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660415018
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 64.6%

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: $22,510 USD|Low: $12,330 USD|High: $76,195 USD|Avg: $30,498 USD|-1.3%
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
Wholesale Diamonds Direct
October 31, 2026
Retailer 2$13,660 USD
Retailer 5$15,678 USD
Retailer 7$17,375 USD
Retailer 14$18,265 USD
Retailer 10$21,998 USD
Retailer 1$22,510 USD
Retailer 8$27,150 USD
Retailer 6$29,200 USD
Retailer 12$31,450 USD
Retailer 3$34,341 USD
Retailer 11$34,874 USD
Retailer 13$38,273 USD
Retailer 9$39,436 USD
Wholesale Diamonds Direct$56,936 USD
Retailer 4$76,195 USD

38 data points across 15 retailers

19 retailers$15,678 USD to $56,936 USD

Retailer 1
-
$13,660 USD
Our latest check could not confirm this price
A
Retailer 2
-
$15,678 USD
View
A
Retailer 3
-
$17,375 USD
View
A
Retailer 4
-
$18,265 USD
View
B+
Retailer 5
-
$19,160 USD
View
B+
Retailer 6
-
$21,998 USD
View
Final sale: no returns
B+
Retailer 7
-
$22,510 USD
£17,724 GBP
View
B+
Retailer 8
-
$27,150 USD
View
B+
Retailer 9
-
$29,200 USD
£22,992 GBP
View
B+
Retailer 10
-
$31,450 USD
£24,764 GBP
View
Retailer 11
-
$34,341 USD
A$52,833 AUD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$34,874 USD
€33,213 EUR
View
Retailer 13
-
$38,273 USD
A$58,881 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$39,436 USD
ZAR 637,088 ZAR
View
B
Retailer 15
-
$49,580 USD
View
B
Retailer 16
-
$50,804 USD
View
Most Expensive
B
Wholesale Diamonds Direct
113194995 · Oct 27
$56,936 USD
View
16 more retailers have this diamond
Prices start from $15,678 USDSave up to $41,258 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
6.47ct Cushion
$15,678 USD