Emerald|Lab Grown|UNKNOWN

0.42ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • UNKNOWN 27271271

Certificate UNKNOWN 27271271

Diamond specifications and retailer prices

From $193 USD
As of October 27, 2026
Save $576 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $769 USD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.42ct lab-grown emerald diamond

This 0.42ct lab-grown emerald sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 27271271. Listed at 5 retailers as of October 27, 2026, with prices from $193 to $769, a $576 spread on the same certified stone. NZ Jewellers lists it at $769. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.42
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 27271271
Dimensions4.68 × 3.58 × 2.61 mm
L/W Ratio1.31
Top View
4.68 mm3.58 mm0.42 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateUNKNOWN 27271271
Side View
Table 63.4%CrownGirdlePavilionCuletDepth 73.0%

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 27
Current: $769 USD|Low: $185 USD|High: $769 USD|Avg: $343 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 11, 2026
Retailer 2$193 USD
Retailer 5$224 USD
Retailer 3$239 USD
Retailer 4$417 USD
NZ Jewellers$769 USD

8 data points across 5 retailers

5 retailers$193 USD to $769 USD

B+
Cheapest Retailer
-
$193 USD
B+
Retailer 2
-
$224 USD
View
B+
Retailer 3
-
$239 USD
View
C
Retailer 4
-
$417 USD
View
Most Expensive
C
NZ Jewellers
cc5e3be2-7b35-485f-bf1d-a7fbafeff0ee · Oct 28
$769 USD
View
4 more retailers have this diamond
Prices start from $193 USDSave up to $576 USD

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+
0.42ct Emerald
$193 USD