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Round|Natural|GIA

1.50ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2121672455

Certificate GIA 2121672455

Diamond specifications and retailer prices

From $12,939 CAD
$9,245 USD
As of October 25, 2026
Save $12,060 CAD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $24,999 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2121672455. Listed at 19 retailers as of October 25, 2026, with prices from $12,939 to $24,999, a $12,060 spread on the same certified stone. Diamond Quarter lists it at $24,999. 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
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2121672455
Dimensions7.32 × 7.30 × 4.55 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.32 mm7.30 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2121672455
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $17,584 CAD|Low: $12,133 CAD|High: $23,015 CAD|Avg: $17,113 CAD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4$12,939 CAD
Retailer 5$14,560 CAD
Retailer 2$15,571 CAD
Retailer 1$17,584 CAD
Retailer 6$19,158 CAD
Retailer 3$22,862 CAD

41 data points across 6 retailers

19 retailers$12,939 CAD to $24,999 CAD

B+
Cheapest Retailer
-
$12,939 CAD
$9,245 USD
B+
Retailer 2
-
$13,258 CAD
$9,473 USD
View
B+
Retailer 3
-
$13,510 CAD
$9,653 USD
View
B+
Retailer 4
-
$13,913 CAD
View
B
Retailer 5
-
$14,560 CAD
$10,403 USD
View
B
Retailer 6
-
$14,560 CAD
$10,403 USD
View
Final sale: no returns
B+
Retailer 7
-
$15,571 CAD
£8,760 GBP
View
B
Retailer 8
-
$15,773 CAD
$11,270 USD
View
B
Retailer 9
-
$16,017 CAD
$11,444 USD
View
B
Retailer 10
-
$16,819 CAD
$12,017 USD
View
B
Retailer 11
-
$17,033 CAD
$12,170 USD
View
B
Retailer 12
-
$17,033 CAD
$12,170 USD
View
B
Retailer 13
-
$17,584 CAD
€11,965 EUR
View
B
Retailer 14
-
$17,593 CAD
$12,570 USD
View
B
Retailer 15
-
$18,200 CAD
$13,004 USD
View
B
Retailer 16
-
$19,158 CAD
$13,688 USD
View
B
Retailer 17
-
$22,862 CAD
£12,862 GBP
View
B
Retailer 18
-
$24,268 CAD
$17,339 USD
View
Most Expensive
B
Diamond Quarter
1.5SI2E2155C50DN · Oct 29
$24,999 CAD
£14,064 GBP
View
18 more retailers have this diamond
Prices start from $12,939 CADSave up to $12,060 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.

B+
1.50ct Round
$12,939 CAD