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Cushion|Lab Grown|IGI

4.90ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG826616191

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

Certificate IGI LG826616191

Diamond specifications and retailer prices

From $1,863 NZD
$1,050 USD
As of October 31, 2026
Save $658 NZD (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,841 NZD at Brilliance · As of October 5, 2026
View at Brilliance

About this 4.9ct lab-grown cushion diamond

This 4.9ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826616191 or 826616191. Listed at 3 retailers as of October 30, 2026, with a 35% 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

4.90
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826616191
Dimensions10.00 × 9.77 × 6.59 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.00 mm9.77 mm4.90 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826616191
Side View
Table 61.0%Crown 35.3°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $5,841 NZD|Low: $1,863 NZD|High: $6,613 NZD|Avg: $4,211 NZD|-11.7%
Brilliance
Retailer 2
Retailer 3
October 30, 2026
Retailer 2$1,863 NZD
Retailer 3$2,521 NZD
Brilliance$5,841 NZD

8 data points across 3 retailers

3 retailers$1,863 NZD to $2,521 NZD

A
Cheapest Retailer
-
$1,863 NZD
$1,050 USD
Final sale: no returns
B+
Retailer 2
-
$2,521 NZD
$1,421 USD
View
Most Expensive
Brilliance
D45445646 · Oct 5
$5,841 NZD
$3,292 USD
View
Price last confirmed 26 days ago
2 more retailers have this diamond
Prices start from $1,863 NZDSave up to $658 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
4.90ct Cushion
$1,863 NZD