Emerald|Lab Grown|UNKNOWN

0.42ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • UNKNOWN 27221221

Certificate UNKNOWN 27221221

Diamond specifications and retailer prices

From $270 CAD
$193 USD
As of October 29, 2026
Save $806 CAD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,076 CAD 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 27221221. Listed at 5 retailers as of October 28, 2026, with prices from $270 to $1,076, a $806 spread on the same certified stone. NZ Jewellers lists it at $1,076. 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 27221221
Dimensions4.97 × 3.31 × 2.59 mm
L/W Ratio1.50
Top View
4.97 mm3.31 mm0.42 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateUNKNOWN 27221221
Side View
Table 62.0%CrownGirdlePavilionCuletDepth 78.2%

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 29
Current: $1,076 CAD|Low: $259 CAD|High: $1,076 CAD|Avg: $480 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 11, 2026
Retailer 2$270 CAD
Retailer 5$314 CAD
Retailer 3$335 CAD
Retailer 4$584 CAD
NZ Jewellers$1,076 CAD

8 data points across 5 retailers

5 retailers$270 CAD to $1,076 CAD

B+
Cheapest Retailer
-
$270 CAD
$193 USD
B+
Retailer 2
-
$314 CAD
$224 USD
View
B+
Retailer 3
-
$335 CAD
$239 USD
View
C
Retailer 4
-
$584 CAD
$417 USD
View
Most Expensive
C
NZ Jewellers
91c34899-c536-4cec-a904-c808352aa523 · Oct 28
$1,076 CAD
$769 USD
View
4 more retailers have this diamond
Prices start from $270 CADSave up to $806 CAD

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
$270 CAD