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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 €125 EUR
$140 USD
As of October 29, 2026
Save €374 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €499 EUR at NZ Jewellers · As of October 30, 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 29, 2026, with prices from €125 to €499, a €374 spread on the same certified stone. NZ Jewellers lists it at €499. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €125 EUR|Low: €120 EUR|High: €289 EUR|Avg: €181 EUR|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1€125 EUR
Retailer 4€145 EUR
Retailer 2€155 EUR
Retailer 3€289 EUR

4 data points across 4 retailers

5 retailers€125 EUR to €499 EUR

B+
Cheapest Retailer
-
€125 EUR
$140 USD
B+
Retailer 2
-
€145 EUR
$163 USD
View
B
Retailer 3
-
€155 EUR
$174 USD
View
B
Retailer 4
-
€289 EUR
$324 USD
View
Most Expensive
C
NZ Jewellers
dcdefa32-6dd3-4c51-b118-04fb6897a1bb · Oct 30
€499 EUR
$560 USD
View
4 more retailers have this diamond
Prices start from €125 EURSave up to €374 EUR

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
€125 EUR