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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6512752915

Certificate GIA 6512752915

Diamond specifications and retailer prices

From $9,352 CAD
HK$52,200 HKD
As of October 29, 2026
Save $11,677 CAD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,029 CAD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512752915. Listed at 19 retailers as of October 28, 2026, with prices from $9,352 to $21,029, a $11,677 spread on the same certified stone. NZ Jewellers lists it at $21,029. 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

1.51
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6512752915
Dimensions7.41 × 7.36 × 4.47 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.41 mm7.36 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512752915
Side View
Table 59.0%Crown 34°Girdle: ThickPavilion 40.6°Culet: NoneDepth 60.5%

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 29
Current: $21,029 CAD|Low: $9,352 CAD|High: $21,029 CAD|Avg: $12,102 CAD
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 10$9,352 CAD
Retailer 7$9,384 CAD
Retailer 11$9,845 CAD
Retailer 4$10,490 CAD
Retailer 6$10,514 CAD
Retailer 15$10,515 CAD
Retailer 14$11,202 CAD
Retailer 5$11,391 CAD
Retailer 19$11,566 CAD
Retailer 12$11,573 CAD
Retailer 16$11,924 CAD
Retailer 9$12,551 CAD
Retailer 3$13,144 CAD
Retailer 8$13,352 CAD
Retailer 13$13,666 CAD
Retailer 17$13,845 CAD
Retailer 18$15,173 CAD
Retailer 2$17,617 CAD
NZ Jewellers$21,029 CAD

40 data points across 19 retailers

19 retailers$9,352 CAD to $21,029 CAD

A
Cheapest Retailer
-
$9,352 CAD
HK$52,200 HKD
A
Retailer 2
-
$9,384 CAD
$6,705 USD
View
A
Retailer 3
-
$9,845 CAD
$7,034 USD
View
A
Retailer 4
-
$10,490 CAD
$7,495 USD
View
A
Retailer 5
-
$10,514 CAD
$7,512 USD
View
Final sale: no returns
A
Retailer 6
-
$10,515 CAD
$7,513 USD
View
A
Retailer 7
-
$11,202 CAD
$8,004 USD
View
B+
Retailer 8
-
$11,391 CAD
$8,139 USD
View
B+
Retailer 9
-
$11,566 CAD
$8,264 USD
View
A
Retailer 10
-
$11,573 CAD
£6,511 GBP
View
B+
Retailer 11
-
$11,924 CAD
A$13,107 AUD
View
B+
Retailer 12
-
$12,551 CAD
$8,967 USD
View
B+
Retailer 13
-
$13,144 CAD
$9,391 USD
View
B+
Retailer 14
-
$13,352 CAD
$9,540 USD
View
B+
Retailer 15
-
$13,666 CAD
€9,299 EUR
View
B+
Retailer 16
-
$13,845 CAD
$9,892 USD
View
B+
Retailer 17
-
$15,173 CAD
ZAR 175,142 ZAR
View
B
Retailer 18
-
$17,617 CAD
£9,911 GBP
View
Most Expensive
B
NZ Jewellers
6ce93c74-746a-4bb5-80ce-0577f7010937 · Oct 27
$21,029 CAD
$15,025 USD
View
18 more retailers have this diamond
Prices start from $9,352 CADSave up to $11,677 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
1.51ct Round
$9,352 CAD