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Round|Lab Grown|GIA

0.31ct D SI1 Round Lab Grown Diamond

VG • D/SI1 • GIA 5453808362

Certificate GIA 5453808362

Diamond specifications and retailer prices

From $189 CAD
$135 USD
As of October 28, 2026
Save $940 CAD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,128 CAD at MOH London · As of October 26, 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5453808362. Listed at 14 retailers as of October 26, 2026, with prices from $189 to $1,128, a $940 spread on the same certified stone. MOH London lists it at $1,128. 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
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginLab Grown
Grading LabGIA
CertificateGIA 5453808362
Dimensions4.34 × 4.31 × 2.73 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.34 mm4.31 mm0.31 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5453808362
Side View
Table 57.0%Crown 35°Girdle: ThickPavilion 41.4°Culet: NoneDepth 63.1%

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 28
Current: $1,128 CAD|Low: $186 CAD|High: $1,134 CAD|Avg: $447 CAD|+0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 7$189 CAD
Retailer 4$194 CAD
Retailer 13$218 CAD
Retailer 8$225 CAD
Retailer 10$242 CAD
Retailer 12$242 CAD
Retailer 2$371 CAD
Retailer 11$450 CAD
Retailer 6$477 CAD
Retailer 9$545 CAD
Retailer 5$775 CAD
Retailer 3$853 CAD
MOH London$1,128 CAD

43 data points across 13 retailers

14 retailers$189 CAD to $1,128 CAD

A
Cheapest Retailer
-
$189 CAD
$135 USD
A
Retailer 2
-
$194 CAD
$139 USD
View
A
Retailer 3
-
$218 CAD
$156 USD
View
Final sale: no returns
A
Retailer 4
-
$225 CAD
$161 USD
View
A
Retailer 5
-
$242 CAD
$173 USD
View
A
Retailer 6
-
$242 CAD
$173 USD
View
B
Retailer 7
-
$371 CAD
£209 GBP
View
B
Retailer 8
-
$450 CAD
$322 USD
View
B
Retailer 9
-
$477 CAD
€325 EUR
View
B
Retailer 10
-
$523 CAD
£295 GBP
View
B
Retailer 11
-
$545 CAD
$390 USD
View
B
Retailer 12
-
$775 CAD
$555 USD
View
B
Retailer 13
-
$853 CAD
$611 USD
View
Most Expensive
B
MOH London
5453808362 · Oct 26
$1,128 CAD
£636 GBP
View
13 more retailers have this diamond
Prices start from $189 CADSave up to $940 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
$189 CAD