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Round|Lab Grown|UNKNOWN

0.31ct E I1 Round Lab Grown Diamond

EX • E/I1 • UNKNOWN 35711711

Certificate UNKNOWN 35711711

Diamond specifications and retailer prices

From $131 USD
As of October 29, 2026
Save $391 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $522 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 35711711. Listed at 5 retailers as of October 27, 2026, with prices from $131 to $522, a $391 spread on the same certified stone. NZ Jewellers lists it at $522. 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 35711711
Dimensions4.31 × 4.28 × 2.73 mm
L/W Ratio1.01
Top View
4.31 mm4.28 mm0.31 ctE / I1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateUNKNOWN 35711711
Side View
Table 58.2%CrownGirdlePavilionCuletDepth 63.6%

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: $131 USD|Low: $126 USD|High: $308 USD|Avg: $191 USD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$131 USD
Retailer 4$152 USD
Retailer 2$162 USD
Retailer 3$308 USD

4 data points across 4 retailers

5 retailers$131 USD to $522 USD

B+
Cheapest Retailer
-
$131 USD
B+
Retailer 2
-
$152 USD
View
B+
Retailer 3
-
$162 USD
View
B
Retailer 4
-
$308 USD
View
Most Expensive
C
NZ Jewellers
7aeb174e-6dab-4acf-bf18-e16b348829ab · Oct 27
$522 USD
View
4 more retailers have this diamond
Prices start from $131 USDSave up to $391 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
$131 USD