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Round|Lab Grown|GIA

4.20ct E VS2 Round Lab Grown Diamond

EX • E/VS2

Diamond specifications and retailer prices

From $3,680 NZD
$2,074 USD
As of October 31, 2026
Save $2,007 NZD (35%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $5,687 NZD at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 4.2ct lab-grown round diamond

This 4.2ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of October 30, 2026, with prices from $3,680 to $5,687, a $2,007 spread on the same certified stone. Moon Ocean lists it at $5,687. 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

4.20
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions10.46 × 10.42 × 0.00 mm
L/W Ratio1.00
Top View
10.46 mm10.42 mm4.20 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 60.7%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $5,687 NZD|Low: $3,265 NZD|High: $5,745 NZD|Avg: $4,421 NZD|+5.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 4$3,265 NZD
Retailer 2$3,680 NZD
Retailer 6$3,733 NZD
Retailer 3$3,847 NZD
Retailer 7$4,945 NZD
Moon Ocean$5,687 NZD
Retailer 5$5,745 NZD

41 data points across 7 retailers

2 retailers$3,680 NZD to $5,687 NZD

B+
Cheapest Retailer
-
$3,680 NZD
$2,074 USD
Most Expensive
B
Moon Ocean
NVL-01E42C713-279 · Oct 30
$5,687 NZD
£2,524 GBP
View
1 more retailer has this diamond
Prices start from $3,680 NZDSave up to $2,007 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+
4.20ct Round
$3,680 NZD