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Round|Lab Grown|IGI

0.31ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG459191704

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459191704

Diamond specifications and retailer prices

From $237 CAD
$170 USD
As of November 1, 2026
Save $1,139 CAD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,377 CAD at MOH London · As of November 1, 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 LG459191704 or 459191704. Listed at 11 retailers as of November 1, 2026, with prices from $237 to $1,377, a $1,139 spread on the same certified stone. MOH London lists it at $1,377. 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 angle33.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459191704
Dimensions4.37 × 4.33 × 2.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
4.37 mm4.33 mm0.31 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG459191704
Side View
Table 61.5%Crown 33.7°Girdle: Slightly ThickPavilion 40.3°Culet: NoneDepth 59.6%

Caratlytics Score

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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: Nov 1
Current: $1,377 CAD|Low: $228 CAD|High: $1,394 CAD|Avg: $530 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$237 CAD
Retailer 10$275 CAD
Retailer 3$293 CAD
Retailer 6$295 CAD
Retailer 9$295 CAD
Retailer 2$519 CAD
Retailer 7$527 CAD
Retailer 4$606 CAD
Retailer 8$947 CAD
MOH London$1,377 CAD

42 data points across 10 retailers

11 retailers$237 CAD to $1,377 CAD

A
Cheapest Retailer
-
$237 CAD
$170 USD
A
Retailer 2
-
$275 CAD
$197 USD
View
A
Retailer 3
-
$293 CAD
$210 USD
View
Retailer 4
-
$295 CAD
$211 USD
View
Price last confirmed 7 days ago
A
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
LG459191704 · Nov 1
$1,377 CAD
£776 GBP
View
10 more retailers have this diamond
Prices start from $237 CADSave up to $1,139 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