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Round|Natural|GIA

1.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1375710423

Certificate GIA 1375710423

Diamond specifications and retailer prices

From €1,881 EUR
As of November 1, 2026
Save €3,020 EUR (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,901 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1375710423. Listed at 13 retailers as of November 1, 2026, with prices from €1,881 to €4,901, a €3,020 spread on the same certified stone. NZ Jewellers lists it at €4,901. 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

1.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1375710423
Dimensions6.51 × 6.47 × 3.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Clouds, pinpoints and surface graining are not shown.
Top View
6.51 mm6.47 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1375710423
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.4%

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 1
Current: €2,466 EUR|Low: €1,881 EUR|High: €4,156 EUR|Avg: €2,537 EUR|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6€1,881 EUR
Retailer 9€1,918 EUR
Retailer 8€2,048 EUR
Retailer 7€2,118 EUR
Retailer 2€2,221 EUR
Retailer 10€2,282 EUR
Retailer 1€2,466 EUR
Retailer 3€2,861 EUR
Retailer 4€2,908 EUR
Retailer 5€4,096 EUR

44 data points across 10 retailers

13 retailers€1,881 EUR to €4,901 EUR

B+
Cheapest Retailer
-
€1,881 EUR
B+
Retailer 2
-
€1,918 EUR
View
B+
Retailer 3
-
€2,048 EUR
View
B
Retailer 4
-
€2,118 EUR
View
B
Retailer 5
-
€2,124 EUR
View
Retailer 6
-
€2,124 EUR
View
Price last confirmed 8 days ago
B
Retailer 7
-
€2,221 EUR
View
B
Retailer 8
-
€2,451 EUR
View
B
Retailer 9
-
€2,466 EUR
View
B
Retailer 10
-
€2,861 EUR
View
B
Retailer 11
-
€2,908 EUR
View
B
Retailer 12
-
€4,096 EUR
View
Most Expensive
B
NZ Jewellers
c17f7fe0-5094-48ee-a955-905dd99e7998 · Nov 5
€4,901 EUR
$5,472 USD
View
12 more retailers have this diamond
Prices start from €1,881 EURSave up to €3,020 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.

B+
1.02ct Round
€1,881 EUR