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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1553091853

Certificate GIA 1553091853

Diamond specifications and retailer prices

From $2,323 USD
As of November 6, 2026
Save $2,753 USD (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,076 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct 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 1553091853. Listed at 7 retailers as of November 5, 2026, with prices from $2,323 to $5,076, a $2,753 spread on the same certified stone. NZ Jewellers lists it at $5,076. 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

1.03
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553091853
Dimensions6.43 × 6.45 × 4.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Pinpoint
Top View
6.43 mm6.45 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553091853
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

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 6
Current: $2,323 USD|Low: $2,321 USD|High: $4,305 USD|Avg: $2,943 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$2,323 USD
Retailer 2$2,553 USD
Retailer 6$2,740 USD
Retailer 4$2,817 USD
Retailer 3$2,963 USD
Retailer 5$4,241 USD

36 data points across 6 retailers

7 retailers$2,323 USD to $5,076 USD

B+
Cheapest Retailer
-
$2,323 USD
B+
Retailer 2
-
$2,553 USD
View
B
Retailer 3
-
$2,740 USD
View
B+
Retailer 4
-
$2,817 USD
View
B
Retailer 5
-
$2,963 USD
View
B
Retailer 6
-
$4,241 USD
View
Most Expensive
B
NZ Jewellers
64e19d28-db2e-4f84-b006-dd5af6c62b06 · Nov 5
$5,076 USD
View
6 more retailers have this diamond
Prices start from $2,323 USDSave up to $2,753 USD

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+
1.03ct Round
$2,323 USD