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Round|Lab Grown|UNKNOWN

0.31ct E I1 Round Lab Grown Diamond

GD • E/I1 • UNKNOWN 35779779

Certificate UNKNOWN 35779779

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 standard cut grade and certified by UNKNOWN 35779779. 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
E
Color
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 35779779
Dimensions4.15 × 4.12 × 2.78 mm
L/W Ratio1.01
Top View
4.15 mm4.12 mm0.31 ctE / I1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 35779779
Side View
Table 59.1%CrownGirdlePavilionCuletDepth 67.2%

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: $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
C
Retailer 4
-
$324 USD
View
Most Expensive
C
NZ Jewellers
03992696-7dbb-44e8-9f51-601b1afacdc1 · 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