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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 €661 EUR
As of November 6, 2026
Save €2,156 EUR (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,817 EUR 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 €661 to €2,817, a €2,156 spread on the same certified stone. NZ Jewellers lists it at €2,817. 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: €2,817 EUR|Low: €661 EUR|High: €2,817 EUR|Avg: €1,247 EUR|+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€661 EUR
Retailer 11€745 EUR
Retailer 8€803 EUR
Retailer 6€878 EUR
Retailer 7€911 EUR
Retailer 9€924 EUR
Retailer 13€930 EUR
Retailer 16€1,008 EUR
Retailer 3€1,037 EUR
Retailer 10€1,069 EUR
Retailer 4€1,253 EUR
Retailer 15€1,258 EUR
Retailer 12€1,316 EUR
Retailer 14€1,643 EUR
Retailer 2€2,135 EUR
NZ Jewellers€2,817 EUR

25 data points across 16 retailers

17 retailers€661 EUR to €2,817 EUR

A
Cheapest Retailer
-
€661 EUR
A
Retailer 2
-
€745 EUR
View
A
Retailer 3
-
€803 EUR
View
B+
Retailer 4
-
€878 EUR
View
Retailer 5
-
€911 EUR
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€924 EUR
View
B+
Retailer 7
-
€930 EUR
View
Retailer 8
-
€933 EUR
View
Price last confirmed 38 days ago
B+
Retailer 9
-
€1,008 EUR
View
B+
Retailer 10
-
€1,037 EUR
View
B+
Retailer 11
-
€1,069 EUR
View
B
Retailer 12
-
€1,253 EUR
View
B+
Retailer 13
-
€1,258 EUR
View
B
Retailer 14
-
€1,316 EUR
View
B
Retailer 15
-
€1,643 EUR
View
B
Retailer 16
-
€2,135 EUR
View
Most Expensive
C
NZ Jewellers
2242df72-53f1-4102-b6f8-e40cc2fbb2a0 · Nov 5
€2,817 EUR
$3,162 USD
View
16 more retailers have this diamond
Prices start from €661 EURSave up to €2,156 EUR

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
€661 EUR