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Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6552766733

Certificate GIA 6552766733

Diamond specifications and retailer prices

From $5,167 CAD
HK$28,900 HKD
As of October 31, 2026
Save $7,102 CAD (58%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,269 CAD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552766733. Listed at 8 retailers as of October 30, 2026, with prices from $5,167 to $12,269, a $7,102 spread on the same certified stone. NZ Jewellers lists it at $12,269. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6552766733
Dimensions7.25 × 7.31 × 4.55 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle, Natural
Top View
7.25 mm7.31 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552766733
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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 31
Current: $12,269 CAD|Low: $5,114 CAD|High: $12,796 CAD|Avg: $8,370 CAD|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$5,167 CAD
Retailer 6$6,574 CAD
Retailer 5$7,042 CAD
Retailer 7$7,042 CAD
Retailer 8$7,407 CAD
Retailer 3$8,057 CAD
Retailer 2$11,216 CAD
NZ Jewellers$12,269 CAD

37 data points across 8 retailers

8 retailers$5,167 CAD to $12,269 CAD

A
Cheapest Retailer
-
$5,167 CAD
HK$28,900 HKD
A
Retailer 2
-
$6,574 CAD
SGD 6,360 SGD
View
A
Retailer 3
-
$7,042 CAD
$5,041 USD
View
A
Retailer 4
-
$7,042 CAD
$5,041 USD
View
B+
Retailer 5
-
$7,407 CAD
A$8,158 AUD
View
B+
Retailer 6
-
$8,057 CAD
€5,493 EUR
View
B+
Retailer 7
-
$11,216 CAD
£6,322 GBP
View
Most Expensive
B
NZ Jewellers
c03762c3-f48b-41c4-9653-c5276a21c282 · Oct 30
$12,269 CAD
$8,783 USD
View
7 more retailers have this diamond
Prices start from $5,167 CADSave up to $7,102 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
$5,167 CAD