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Round|Natural|GIA

0.90ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5566560520

Certificate GIA 5566560520

Diamond specifications and retailer prices

From $1,626 CAD
As of November 6, 2026
Save $3,573 CAD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,308 CAD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566560520. Listed at 18 retailers as of November 2, 2026, with a 220% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.90
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5566560520
Dimensions6.18 × 6.20 × 3.84 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
6.18 mm6.20 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566560520
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.0%

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: Nov 6
Current: $5,308 CAD|Low: $1,609 CAD|High: $5,308 CAD|Avg: $2,702 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
November 2, 2026
Retailer 15$1,626 CAD
Retailer 13$1,698 CAD
Retailer 7$1,976 CAD
Retailer 8$1,997 CAD
Retailer 17$2,095 CAD
Retailer 10$2,158 CAD
Retailer 4$2,176 CAD
Retailer 18$2,176 CAD
Retailer 9$2,268 CAD
Retailer 3$2,276 CAD
Retailer 6$2,366 CAD
Retailer 11$2,404 CAD
Retailer 5$2,511 CAD
Retailer 12$2,958 CAD
Retailer 16$3,209 CAD
Retailer 14$3,813 CAD
Retailer 2$5,198 CAD
NZ Jewellers$5,308 CAD

18 data points across 18 retailers

18 retailers$1,626 CAD to $5,198 CAD

A
Cheapest Retailer
-
$1,626 CAD
A
Retailer 2
-
$1,698 CAD
View
B+
Retailer 3
-
$1,976 CAD
View
B+
Retailer 4
-
$1,997 CAD
View
B+
Retailer 5
-
$2,095 CAD
View
B
Retailer 6
-
$2,158 CAD
View
Retailer 7
-
$2,176 CAD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$2,176 CAD
View
Retailer 9
-
$2,268 CAD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$2,276 CAD
View
B
Retailer 11
-
$2,366 CAD
View
B
Retailer 12
-
$2,404 CAD
View
B
Retailer 13
-
$2,511 CAD
View
B
Retailer 14
-
$2,958 CAD
View
B
Retailer 15
-
$3,209 CAD
View
B
Retailer 16
-
$3,813 CAD
View
B
Retailer 17
-
$5,198 CAD
View
Most Expensive
NZ Jewellers
963deaa8-a60e-43fa-abc0-9752fca7d4ab · Oct 30
$5,308 CAD
$3,801 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $1,626 CADSave up to $3,573 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
0.90ct Round
$1,626 CAD