Round|Lab Grown|UNKNOWN

0.31ct E I1 Round Lab Grown Diamond

EX • E/I1 • UNKNOWN 35295295

Certificate UNKNOWN 35295295

Diamond specifications and retailer prices

From $140 USD
As of October 29, 2026
Save $420 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $560 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded E colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by UNKNOWN 35295295. Listed at 5 retailers as of October 27, 2026, with prices from $140 to $560, a $420 spread on the same certified stone. NZ Jewellers lists it at $560. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.31
Carat
E
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 35295295
Dimensions4.30 × 4.27 × 2.69 mm
L/W Ratio1.01
Top View
4.30 mm4.27 mm0.31 ctE / I1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 35295295
Side View
Table 55.3%CrownGirdlePavilionCuletDepth 62.9%

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 29
Current: $140 USD|Low: $135 USD|High: $324 USD|Avg: $203 USD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$140 USD
Retailer 4$163 USD
Retailer 2$174 USD
Retailer 3$324 USD

4 data points across 4 retailers

5 retailers$140 USD to $560 USD

B+
Cheapest Retailer
-
$140 USD
B+
Retailer 2
-
$163 USD
View
B
Retailer 3
-
$174 USD
View
B
Retailer 4
-
$324 USD
View
Most Expensive
C
NZ Jewellers
dcdefa32-6dd3-4c51-b118-04fb6897a1bb · Oct 27
$560 USD
View
4 more retailers have this diamond
Prices start from $140 USDSave up to $420 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+
0.31ct Round
$140 USD