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Round|Natural|GIA

1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6531188321

Certificate GIA 6531188321

Diamond specifications and retailer prices

From $10,121 CAD
As of November 6, 2026
Save $12,712 CAD (56%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $22,833 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct 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 6531188321. Listed at 28 retailers as of November 5, 2026, with prices from $10,121 to $22,833, a $12,712 spread on the same certified stone. NZ Jewellers lists it at $22,833. 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

1.55
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531188321
Dimensions7.36 × 7.34 × 4.56 mm
L/W Ratio1.00
Top View
7.36 mm7.34 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531188321
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.1%

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: Nov 6
Current: $12,537 CAD|Low: $10,121 CAD|High: $19,255 CAD|Avg: $13,804 CAD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$10,121 CAD
Retailer 6$10,440 CAD
Retailer 4$10,688 CAD
Retailer 8$10,954 CAD
Retailer 1$12,537 CAD
Retailer 7$12,613 CAD
Retailer 3$14,067 CAD
Retailer 2$16,654 CAD
Retailer 5$18,974 CAD

44 data points across 9 retailers

28 retailers$10,121 CAD to $22,833 CAD

B+
Cheapest Retailer
-
$10,121 CAD
B+
Retailer 2
-
$10,352 CAD
View
B+
Retailer 3
-
$10,440 CAD
View
B+
Retailer 4
-
$10,664 CAD
View
B+
Retailer 5
-
$10,688 CAD
View
B+
Retailer 6
-
$10,954 CAD
View
Final sale: no returns
B+
Retailer 7
-
$10,995 CAD
View
B+
Retailer 8
-
$11,219 CAD
View
B+
Retailer 9
-
$11,361 CAD
View
Retailer 10
-
$11,416 CAD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$12,167 CAD
View
B
Retailer 12
-
$12,368 CAD
View
B+
Retailer 13
-
$12,537 CAD
View
B
Retailer 14
-
$12,558 CAD
View
Retailer 15
-
$12,613 CAD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$12,670 CAD
View
B
Retailer 17
-
$13,122 CAD
View
B
Retailer 18
-
$13,533 CAD
View
B
Retailer 19
-
$13,533 CAD
View
B
Retailer 20
-
$13,838 CAD
View
B
Retailer 21
-
$13,980 CAD
View
B
Retailer 22
-
$14,067 CAD
View
B
Retailer 23
-
$14,270 CAD
View
B
Retailer 24
-
$14,572 CAD
View
Retailer 25
-
$15,029 CAD
View
Price last confirmed 14 days ago
B
Retailer 26
-
$16,654 CAD
View
B
Retailer 27
-
$18,974 CAD
View
Most Expensive
B
NZ Jewellers
bad8d0d6-c1c9-4c6b-977e-f24c51c588e1 · Nov 5
$22,833 CAD
$16,349 USD
View
27 more retailers have this diamond
Prices start from $10,121 CADSave up to $12,712 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+
1.55ct Round
$10,121 CAD