CaratHunter
Plans
Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2557586665

Certificate GIA 2557586665

Diamond specifications and retailer prices

From $7,349 CAD
HK$41,100 HKD
As of October 31, 2026
Save $9,336 CAD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $16,685 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557586665. Listed at 17 retailers as of October 30, 2026, with prices from $7,349 to $16,685, a $9,336 spread on the same certified stone. NZ Jewellers lists it at $16,685. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2557586665
Dimensions7.25 × 7.31 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
7.25 mm7.31 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557586665
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: $16,685 CAD|Low: $7,233 CAD|High: $16,685 CAD|Avg: $10,181 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
October 31, 2026
Retailer 2$7,349 CAD
Retailer 16$7,383 CAD
Retailer 5$7,883 CAD
Retailer 7$8,341 CAD
Retailer 3$9,038 CAD
Retailer 6$9,038 CAD
Retailer 15$9,038 CAD
Retailer 12$9,503 CAD
Retailer 10$9,965 CAD
Retailer 8$10,044 CAD
Retailer 17$10,044 CAD
Retailer 14$10,379 CAD
Retailer 4$10,428 CAD
Retailer 9$10,995 CAD
Retailer 11$12,084 CAD
Retailer 13$14,776 CAD
NZ Jewellers$16,685 CAD

38 data points across 17 retailers

17 retailers$7,349 CAD to $16,685 CAD

A
Cheapest Retailer
-
$7,349 CAD
HK$41,100 HKD
A
Retailer 2
-
$7,383 CAD
$5,285 USD
View
B+
Retailer 3
-
$7,883 CAD
$5,643 USD
View
B+
Retailer 4
-
$8,341 CAD
$5,971 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,038 CAD
$6,470 USD
View
B+
Retailer 6
-
$9,038 CAD
$6,470 USD
View
B+
Retailer 7
-
$9,038 CAD
$6,470 USD
View
B+
Retailer 8
-
$9,503 CAD
£5,356 GBP
View
B+
Retailer 9
-
$9,965 CAD
€6,794 EUR
View
B
Retailer 10
-
$10,044 CAD
$7,190 USD
View
B+
Retailer 11
-
$10,044 CAD
$7,190 USD
View
B
Retailer 12
-
$10,379 CAD
$7,430 USD
View
B
Retailer 13
-
$10,428 CAD
$7,465 USD
View
Retailer 14
-
$10,995 CAD
$7,871 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$12,084 CAD
£6,812 GBP
View
B
Retailer 16
-
$14,776 CAD
£8,329 GBP
View
Most Expensive
B
NZ Jewellers
1b7dad14-d83a-4a6a-990d-39a4c693f98f · Oct 30
$16,685 CAD
$11,944 USD
View
16 more retailers have this diamond
Prices start from $7,349 CADSave up to $9,336 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
$7,349 CAD