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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 $22,319 AUD
$15,678 USD
As of November 1, 2026
Save $58,735 AUD (72%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $81,054 AUD 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 $22,319 to $81,054, a $58,735 spread on the same certified stone. Wholesale Diamonds Direct lists it at $81,054. 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
Colour
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

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: Nov 1
Current: $54,393 AUD|Low: $19,446 AUD|High: $108,471 AUD|Avg: $44,566 AUD|-0.2%
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
November 1, 2026
Retailer 3$19,446 AUD
Retailer 5$22,319 AUD
Retailer 11$24,735 AUD
Retailer 2$26,002 AUD
Retailer 14$31,316 AUD
Retailer 9$31,778 AUD
Retailer 12$38,651 AUD
Retailer 6$41,569 AUD
Retailer 7$44,534 AUD
Retailer 8$48,298 AUD
Retailer 10$49,298 AUD
Retailer 1$54,393 AUD
Retailer 13$56,141 AUD
Wholesale Diamonds Direct$81,054 AUD
Retailer 4$108,471 AUD

38 data points across 15 retailers

19 retailers$22,319 AUD to $81,054 AUD

Retailer 1
-
$19,446 AUD
$13,660 USD
Our latest check could not confirm this price
A
Retailer 2
-
$22,319 AUD
$15,678 USD
View
A
Retailer 3
-
$24,735 AUD
$17,375 USD
View
A
Retailer 4
-
$26,002 AUD
$18,265 USD
View
B+
Retailer 5
-
$27,276 AUD
$19,160 USD
View
B+
Retailer 6
-
$31,316 AUD
$21,998 USD
View
Final sale: no returns
B+
Retailer 7
-
$31,778 AUD
£17,577 GBP
View
B+
Retailer 8
-
$38,651 AUD
$27,150 USD
View
B+
Retailer 9
-
$41,569 AUD
£22,992 GBP
View
B+
Retailer 10
-
$44,534 AUD
£24,632 GBP
View
B
Retailer 11
-
$48,298 AUD
View
B+
Retailer 12
-
$49,298 AUD
€32,980 EUR
View
B
Retailer 13
-
$54,393 AUD
View
B+
Retailer 14
-
$56,141 AUD
ZAR 637,088 ZAR
View
B
Retailer 15
-
$70,581 AUD
$49,580 USD
View
B
Retailer 16
-
$72,325 AUD
$50,804 USD
View
Most Expensive
B
Wholesale Diamonds Direct
113194995 · Oct 27
$81,054 AUD
$56,936 USD
View
16 more retailers have this diamond
Prices start from $22,319 AUDSave up to $58,735 AUD

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
$22,319 AUD