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Round|Lab Grown

0.30ct E I1 Round Lab Grown Diamond

EX • E/I1 • TA35C-1294-1294

Diamond specifications and retailer prices

From $137 USD
As of October 29, 2026
Save $408 USD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $545 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded E colour (colourless) and I1 clarity (included), with a top-tier cut grade. Listed at 4 retailers as of October 27, 2026, with prices from $137 to $545, a $408 spread on the same certified stone. NZ Jewellers lists it at $545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.30
Carat
E
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA35C-1294-1294
Dimensions4.25 × 4.23 × 2.68 mm
L/W Ratio1.00
Top View
4.25 mm4.23 mm0.30 ctE / I1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateTA35C-1294-1294
Side View
Table 56.5%CrownGirdlePavilionCuletDepth 63.2%

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: $545 USD|Low: $131 USD|High: $545 USD|Avg: $235 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 10, 2026
Retailer 2$137 USD
Retailer 5$159 USD
Retailer 3$170 USD
Retailer 4$170 USD
NZ Jewellers$545 USD

4 data points across 5 retailers

4 retailers$137 USD to $545 USD

B+
Cheapest Retailer
-
$137 USD
B
Retailer 2
-
$159 USD
View
B
Retailer 3
-
$170 USD
View
Most Expensive
C
NZ Jewellers
1720b94f-96b1-4070-b0ca-101abdbd1526 · Oct 27
$545 USD
View
3 more retailers have this diamond
Prices start from $137 USDSave up to $408 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+
0.30ct Round
$137 USD