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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 $2,071 NZD
As of November 6, 2026
Save $4,550 NZD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,762 NZD 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
Colour
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: $6,762 NZD|Low: $2,049 NZD|High: $6,762 NZD|Avg: $3,442 NZD
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$2,071 NZD
Retailer 13$2,163 NZD
Retailer 7$2,517 NZD
Retailer 8$2,544 NZD
Retailer 17$2,668 NZD
Retailer 10$2,748 NZD
Retailer 4$2,772 NZD
Retailer 18$2,772 NZD
Retailer 9$2,889 NZD
Retailer 3$2,900 NZD
Retailer 6$3,013 NZD
Retailer 11$3,061 NZD
Retailer 5$3,198 NZD
Retailer 12$3,768 NZD
Retailer 16$4,088 NZD
Retailer 14$4,856 NZD
Retailer 2$6,621 NZD
NZ Jewellers$6,762 NZD

18 data points across 18 retailers

18 retailers$2,071 NZD to $6,621 NZD

A
Cheapest Retailer
-
$2,071 NZD
A
Retailer 2
-
$2,163 NZD
View
B+
Retailer 3
-
$2,517 NZD
View
B+
Retailer 4
-
$2,544 NZD
View
B+
Retailer 5
-
$2,668 NZD
View
B
Retailer 6
-
$2,748 NZD
View
Retailer 7
-
$2,772 NZD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$2,772 NZD
View
Retailer 9
-
$2,889 NZD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$2,900 NZD
View
B
Retailer 11
-
$3,013 NZD
View
B
Retailer 12
-
$3,061 NZD
View
B
Retailer 13
-
$3,198 NZD
View
B
Retailer 14
-
$3,768 NZD
View
B
Retailer 15
-
$4,088 NZD
View
B
Retailer 16
-
$4,856 NZD
View
B
Retailer 17
-
$6,621 NZD
View
Most Expensive
NZ Jewellers
963deaa8-a60e-43fa-abc0-9752fca7d4ab · Oct 30
$6,762 NZD
$3,801 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $2,071 NZDSave up to $4,550 NZD

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
$2,071 NZD