Cushion|Lab Grown|IGI

4.50ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG819602244

Certificate IGI LG819602244

Diamond specifications and retailer prices

From $2,906 NZD
$1,638 USD
As of October 31, 2026
Save $3,043 NZD (51%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $10,894 NZD at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

About this 4.5ct lab-grown cushion diamond

This 4.5ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG819602244 or 819602244. Listed at 5 retailers as of October 31, 2026, with a 105% 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

4.50
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG819602244
Dimensions11.59 × 8.29 × 5.18 mm
L/W Ratio1.40
Top View
11.59 mm8.29 mm4.50 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819602244
Side View
Table 67.0%CrownGirdle: Med. - ThickPavilionCuletDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $10,894 NZD|Low: $1,828 NZD|High: $10,894 NZD|Avg: $5,396 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 5$1,828 NZD
Retailer 2$2,906 NZD
Retailer 4$5,066 NZD
Retailer 3$5,949 NZD
Brilliant Earth$10,894 NZD

8 data points across 5 retailers

5 retailers$2,906 NZD to $5,949 NZD

Retailer 1
-
$1,828 NZD
$1,030 USD
Price last confirmed 21 days ago
B+
Retailer 2
-
$2,906 NZD
$1,638 USD
View
Retailer 3
-
$5,066 NZD
$2,855 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
$5,949 NZD
$3,353 USD
View
Most Expensive
Brilliant Earth
21090716A · Sep 23
$10,894 NZD
$6,140 USD
View
Price last confirmed 39 days ago
4 more retailers have this diamond
Prices start from $2,906 NZDSave up to $3,043 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.

B+
4.50ct Cushion
$2,906 NZD