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Round|Lab Grown|IGI

0.31ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG459129602

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129602

Diamond specifications and retailer prices

From $237 CAD
$170 USD
As of October 29, 2026
Save $1,146 CAD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,384 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG459129602 or 459129602. Listed at 11 retailers as of October 29, 2026, with prices from $237 to $1,384, a $1,146 spread on the same certified stone. MOH London lists it at $1,384. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129602
Dimensions4.36 × 4.35 × 2.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
4.36 mm4.35 mm0.31 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459129602
Side View
Table 56.0%Crown 34.6°Girdle: THN-STKPavilion 40.7°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,384 CAD|Low: $228 CAD|High: $1,394 CAD|Avg: $503 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$237 CAD
Retailer 8$275 CAD
Retailer 3$293 CAD
Retailer 6$295 CAD
Retailer 9$395 CAD
Retailer 2$519 CAD
Retailer 7$527 CAD
Retailer 4$606 CAD
MOH London$1,384 CAD

43 data points across 9 retailers

11 retailers$237 CAD to $1,384 CAD

A
Cheapest Retailer
-
$237 CAD
$170 USD
A
Retailer 2
-
$275 CAD
$197 USD
View
A
Retailer 3
-
$293 CAD
$210 USD
View
B+
Retailer 4
-
$295 CAD
$211 USD
View
B+
Retailer 5
-
$295 CAD
$211 USD
View
B
Retailer 6
-
$519 CAD
£293 GBP
View
B
Retailer 7
-
$527 CAD
$377 USD
View
B
Retailer 8
-
$606 CAD
€413 EUR
View
B
Retailer 9
-
$685 CAD
£386 GBP
View
B
Retailer 10
-
$947 CAD
$678 USD
View
Most Expensive
B
MOH London
LG459129602 · Oct 29
$1,384 CAD
£780 GBP
View
10 more retailers have this diamond
Prices start from $237 CADSave up to $1,146 CAD

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.

A
0.31ct Round
$237 CAD