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Round|Natural|GIA

0.90ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 1558242021

Certificate GIA 1558242021

Diamond specifications and retailer prices

From $1,320 NZD
As of November 6, 2026
Save $4,305 NZD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,625 NZD at NZ Jewellers · As of November 5, 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 very-good cut grade and certified by GIA 1558242021. Listed at 17 retailers as of November 5, 2026, with prices from $1,320 to $5,625, a $4,305 spread on the same certified stone. NZ Jewellers lists it at $5,625. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1558242021
Dimensions5.94 × 6.03 × 3.85 mm
L/W Ratio1.02
Girdle conditionFaceted
Key to symbols
Crystal
Top View
5.94 mm6.03 mm0.90 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1558242021
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.3%

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: $5,625 NZD|Low: $1,320 NZD|High: $5,625 NZD|Avg: $2,490 NZD|+26.8%
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
November 6, 2026
Retailer 5$1,320 NZD
Retailer 11$1,487 NZD
Retailer 8$1,603 NZD
Retailer 6$1,754 NZD
Retailer 7$1,818 NZD
Retailer 9$1,845 NZD
Retailer 13$1,857 NZD
Retailer 16$2,012 NZD
Retailer 3$2,071 NZD
Retailer 10$2,135 NZD
Retailer 4$2,501 NZD
Retailer 15$2,512 NZD
Retailer 12$2,627 NZD
Retailer 14$3,280 NZD
Retailer 2$4,262 NZD
NZ Jewellers$5,625 NZD

25 data points across 16 retailers

17 retailers$1,320 NZD to $5,625 NZD

A
Cheapest Retailer
-
$1,320 NZD
A
Retailer 2
-
$1,487 NZD
View
A
Retailer 3
-
$1,603 NZD
View
B+
Retailer 4
-
$1,754 NZD
View
Retailer 5
-
$1,818 NZD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,845 NZD
View
B+
Retailer 7
-
$1,857 NZD
View
Retailer 8
-
$1,863 NZD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$2,012 NZD
View
B+
Retailer 10
-
$2,071 NZD
View
B+
Retailer 11
-
$2,135 NZD
View
B
Retailer 12
-
$2,501 NZD
View
B+
Retailer 13
-
$2,512 NZD
View
B
Retailer 14
-
$2,627 NZD
View
B
Retailer 15
-
$3,280 NZD
View
B
Retailer 16
-
$4,262 NZD
View
Most Expensive
C
NZ Jewellers
2242df72-53f1-4102-b6f8-e40cc2fbb2a0 · Nov 5
$5,625 NZD
$3,162 USD
View
16 more retailers have this diamond
Prices start from $1,320 NZDSave up to $4,305 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
$1,320 NZD