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Round|Natural|GIA

1.50ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6451465789

Certificate GIA 6451465789

Diamond specifications and retailer prices

From $11,211 CAD
$8,010 USD
As of October 25, 2026
Save $12,306 CAD (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $23,516 CAD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6451465789. Listed at 16 retailers as of October 25, 2026, with prices from $11,211 to $23,516, a $12,306 spread on the same certified stone. Diamond Quarter lists it at $23,516. 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

1.50
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6451465789
Dimensions7.37 × 7.33 × 4.54 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
7.37 mm7.33 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6451465789
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Oct 25
Current: $15,232 CAD|Low: $10,171 CAD|High: $19,291 CAD|Avg: $13,911 CAD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4$11,211 CAD
Retailer 8$11,306 CAD
Retailer 5$12,205 CAD
Retailer 2$13,209 CAD
Retailer 6$13,222 CAD
Retailer 1$15,232 CAD
Retailer 7$16,063 CAD
Retailer 3$19,163 CAD

42 data points across 8 retailers

16 retailers$11,211 CAD to $23,516 CAD

A
Cheapest Retailer
-
$11,211 CAD
$8,010 USD
A
Retailer 2
-
$11,426 CAD
$8,164 USD
View
B+
Retailer 3
-
$12,205 CAD
$8,720 USD
View
B+
Retailer 4
-
$12,205 CAD
$8,720 USD
View
Final sale: no returns
B+
Retailer 5
-
$13,209 CAD
£7,431 GBP
View
B+
Retailer 6
-
$13,222 CAD
$9,447 USD
View
B+
Retailer 7
-
$13,425 CAD
$9,592 USD
View
B+
Retailer 8
-
$14,416 CAD
$10,300 USD
View
B+
Retailer 9
-
$14,416 CAD
$10,300 USD
View
B+
Retailer 10
-
$14,892 CAD
$10,640 USD
View
B+
Retailer 11
-
$15,232 CAD
€10,365 EUR
View
B+
Retailer 12
-
$15,256 CAD
$10,900 USD
View
B+
Retailer 13
-
$16,063 CAD
$11,477 USD
View
B
Retailer 14
-
$19,163 CAD
£10,781 GBP
View
B
Retailer 15
-
$20,340 CAD
$14,533 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2D648989CAN · Oct 29
$23,516 CAD
£13,230 GBP
View
15 more retailers have this diamond
Prices start from $11,211 CADSave up to $12,306 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
1.50ct Round
$11,211 CAD