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Radiant|Lab Grown|IGI

4.78ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1

Diamond specifications and retailer prices

From $1,059 NZD
$597 USD
As of October 30, 2026
Save $9,365 NZD (90%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $10,424 NZD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 4.78ct lab-grown radiant diamond

This 4.78ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI. Listed at 6 retailers as of October 30, 2026, with prices from $1,059 to $10,424, a $9,365 spread on the same certified stone. Helzberg Diamonds lists it at $10,424. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.78
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions11.74 × 8.35 × 5.67 mm
L/W Ratio1.41
Top View
11.74 mm8.35 mm4.78 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.9%

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: Oct 30
Current: $10,424 NZD|Low: $1,059 NZD|High: $13,898 NZD|Avg: $4,556 NZD|-25.0%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5$1,059 NZD
Retailer 2$1,185 NZD
Retailer 3$1,242 NZD
Retailer 6$1,918 NZD
Retailer 4$3,453 NZD
Helzberg Diamonds$10,424 NZD

36 data points across 6 retailers

6 retailers$1,059 NZD to $10,424 NZD

A
Cheapest Retailer
-
$1,059 NZD
$597 USD
A
Retailer 2
-
$1,185 NZD
$668 USD
View
A
Retailer 3
-
$1,242 NZD
£551 GBP
View
B+
Retailer 4
-
$1,918 NZD
$1,081 USD
View
B+
Retailer 5
-
$3,453 NZD
$1,946 USD
View
Most Expensive
C
Helzberg Diamonds
ZXZOJHMNOGJN · Nov 1
$10,424 NZD
$5,875 USD
View
5 more retailers have this diamond
Prices start from $1,059 NZDSave up to $9,365 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
4.78ct Radiant
$1,059 NZD