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Cushion|Lab Grown|IGI

5.78ct E VVS2 Cushion Lab Grown Diamond

EX • E/VVS2 • IGI LG847680364

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG847680364

Diamond specifications and retailer prices

From $3,261 NZD
$1,838 USD
As of October 28, 2026
Save $20,514 NZD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $23,776 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.78ct lab-grown cushion diamond

This 5.78ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG847680364 or 847680364. Listed at 17 retailers as of October 28, 2026, with prices from $3,261 to $23,776, a $20,514 spread on the same certified stone. Brilliant Earth lists it at $23,776. 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

5.78
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847680364
Dimensions13.17 × 9.36 × 6.11 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.17 mm9.36 mm5.78 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847680364
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $23,776 NZD|Low: $3,261 NZD|High: $23,776 NZD|Avg: $8,193 NZD
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 6$3,261 NZD
Retailer 12$3,620 NZD
Retailer 14$3,682 NZD
Retailer 5$4,058 NZD
Retailer 2$4,789 NZD
Retailer 13$4,830 NZD
Retailer 10$5,360 NZD
Retailer 16$5,522 NZD
Retailer 15$6,839 NZD
Retailer 4$7,003 NZD
Retailer 17$8,348 NZD
Retailer 7$8,692 NZD
Retailer 11$9,703 NZD
Retailer 8$9,803 NZD
Retailer 9$11,864 NZD
Retailer 3$17,104 NZD
Brilliant Earth$23,776 NZD

8 data points across 17 retailers

17 retailers$3,261 NZD to $23,776 NZD

A
Cheapest Retailer
-
$3,261 NZD
$1,838 USD
Final sale: no returns
A
Retailer 2
-
$3,620 NZD
£1,606 GBP
View
A
Retailer 3
-
$3,682 NZD
$2,075 USD
View
A
Retailer 4
-
$4,058 NZD
$2,287 USD
View
A
Retailer 5
-
$4,789 NZD
£2,125 GBP
View
A
Retailer 6
-
$4,830 NZD
$2,722 USD
View
A
Retailer 7
-
$5,360 NZD
€2,877 EUR
View
A
Retailer 8
-
$5,522 NZD
$3,112 USD
View
B+
Retailer 9
-
$6,839 NZD
ZAR 62,271 ZAR
View
B+
Retailer 10
-
$7,003 NZD
£3,108 GBP
View
B+
Retailer 11
-
$8,348 NZD
$4,705 USD
View
B+
Retailer 12
-
$8,692 NZD
$4,899 USD
View
B
Retailer 13
-
$9,703 NZD
£4,306 GBP
View
B+
Retailer 14
-
$9,803 NZD
$5,525 USD
View
B
Retailer 15
-
$11,864 NZD
$6,686 USD
View
B
Retailer 16
-
$17,104 NZD
$9,640 USD
View
Most Expensive
B
Brilliant Earth
22239772A · Oct 29
$23,776 NZD
$13,400 USD
View
16 more retailers have this diamond
Prices start from $3,261 NZDSave up to $20,514 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
5.78ct Cushion
$3,261 NZD