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1.55ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 2474519311

Certificate GIA 2474519311

Diamond specifications and retailer prices

From $462 CAD
As of November 5, 2026
Save $1,828 CAD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,290 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2474519311. Listed at 16 retailers as of October 31, 2026, with prices from $462 to $2,290, a $1,828 spread on the same certified stone. Brilliant Earth lists it at $2,290. 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

1.55
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 2474519311
Dimensions7.39 × 7.35 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.39 mm7.35 mm1.55 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2474519311
Side View
Table 57.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.5%

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 5
Current: $2,290 CAD|Low: $451 CAD|High: $2,366 CAD|Avg: $1,061 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 3$462 CAD
Retailer 8$527 CAD
Retailer 14$536 CAD
Retailer 15$573 CAD
Retailer 6$580 CAD
Retailer 4$771 CAD
Retailer 13$789 CAD
Retailer 16$803 CAD
Retailer 2$888 CAD
Retailer 11$918 CAD
Retailer 5$987 CAD
Retailer 7$1,045 CAD
Retailer 9$1,680 CAD
Retailer 12$1,841 CAD
Retailer 10$2,288 CAD
Brilliant Earth$2,290 CAD

45 data points across 16 retailers

16 retailers$462 CAD to $2,290 CAD

A
Cheapest Retailer
-
$462 CAD
A
Retailer 2
-
$527 CAD
View
Final sale: no returns
A
Retailer 3
-
$536 CAD
View
A
Retailer 4
-
$573 CAD
View
Retailer 5
-
$580 CAD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$771 CAD
View
A
Retailer 7
-
$789 CAD
View
A
Retailer 8
-
$803 CAD
View
B+
Retailer 9
-
$888 CAD
View
B+
Retailer 10
-
$918 CAD
View
B+
Retailer 11
-
$987 CAD
View
B+
Retailer 12
-
$1,045 CAD
View
B
Retailer 13
-
$1,680 CAD
View
B
Retailer 14
-
$1,841 CAD
View
B
Retailer 15
-
$2,288 CAD
View
Most Expensive
B
Brilliant Earth
13393592A · Oct 31
$2,290 CAD
$1,640 USD
View
15 more retailers have this diamond
Prices start from $462 CADSave up to $1,828 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
1.55ct Round
$462 CAD