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Cushion|Lab Grown|IGI

6.50ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG745518304

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG745518304

Diamond specifications and retailer prices

From $1,854 NZD
$1,043 USD
As of November 3, 2026
Save $4,927 NZD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,304 NZD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 6.5ct lab-grown cushion diamond

This 6.5ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG745518304 or 745518304. Listed at 14 retailers as of November 3, 2026, with a 266% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.50
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745518304
Dimensions10.75 × 10.52 × 6.53 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.75 mm10.52 mm6.50 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745518304
Side View
Table 63.0%Crown 34.8°Girdle: MED-STKPavilion 31.2°Culet: NoneDepth 62.1%

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 3
Current: $2,932 NZD|Low: $1,854 NZD|High: $6,898 NZD|Avg: $4,259 NZD|-1.1%
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
November 3, 2026
Retailer 12$1,854 NZD
Retailer 3$1,928 NZD
Retailer 10$2,231 NZD
Retailer 1$2,932 NZD
Retailer 2$3,080 NZD
Retailer 9$3,560 NZD
Retailer 6$3,722 NZD
Retailer 5$5,037 NZD
Retailer 4$5,201 NZD
Retailer 11$5,458 NZD
Retailer 8$6,011 NZD
Retailer 13$6,520 NZD
Retailer 7$6,781 NZD

45 data points across 13 retailers

14 retailers$1,854 NZD to $6,781 NZD

A
Cheapest Retailer
-
$1,854 NZD
$1,043 USD
Final sale: no returns
Retailer 2
-
$1,928 NZD
$1,085 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$2,231 NZD
$1,255 USD
View
A
Retailer 4
-
$2,932 NZD
£1,299 GBP
View
B+
Retailer 5
-
$3,080 NZD
$1,733 USD
View
A
Retailer 6
-
$3,560 NZD
A$3,082 AUD
View
A
Retailer 7
-
$3,722 NZD
ZAR 33,828 ZAR
View
B+
Retailer 8
-
$5,037 NZD
$2,834 USD
View
B+
Retailer 9
-
$5,201 NZD
£2,304 GBP
View
B+
Retailer 10
-
$5,458 NZD
$3,071 USD
View
B+
Retailer 11
-
$6,011 NZD
$3,382 USD
View
B+
Retailer 12
-
$6,520 NZD
$3,669 USD
View
B+
Retailer 13
-
$6,781 NZD
£3,004 GBP
View
Most Expensive
Rare Carat
LAB7444_l_745518304 · Oct 19
$9,304 NZD
$5,235 USD
View
Price last confirmed 15 days ago
13 more retailers have this diamond
Prices start from $1,854 NZDSave up to $4,927 NZD

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
6.50ct Cushion
$1,854 NZD