Round|Natural|GIA

1.01ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2245005131

Certificate GIA 2245005131

Diamond specifications and retailer prices

From $1,177 USD
As of November 6, 2026
Save $1,632 USD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,118 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245005131. Listed at 11 retailers as of November 4, 2026, with a 139% 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

1.01
Carat
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2245005131
Dimensions6.35 × 6.38 × 3.98 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.35 mm6.38 mm1.01 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245005131
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,645 USD|Low: $1,164 USD|High: $2,989 USD|Avg: $1,846 USD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$1,177 USD
Retailer 6$1,482 USD
Retailer 9$1,484 USD
Retailer 4$1,589 USD
Retailer 1$1,645 USD
Retailer 11$1,700 USD
Retailer 3$1,714 USD
Retailer 8$1,750 USD
Retailer 2$2,152 USD
Retailer 7$2,414 USD
Retailer 5$2,809 USD

40 data points across 11 retailers

11 retailers$1,177 USD to $2,809 USD

A
Cheapest Retailer
-
$1,177 USD
A
Retailer 2
-
$1,482 USD
View
A
Retailer 3
-
$1,484 USD
View
Final sale: no returns
A
Retailer 4
-
$1,589 USD
View
A
Retailer 5
-
$1,645 USD
View
B+
Retailer 6
-
$1,700 USD
View
B+
Retailer 7
-
$1,714 USD
View
A
Retailer 8
-
$1,750 USD
View
B
Retailer 9
-
$2,414 USD
View
B
Retailer 10
-
$2,809 USD
View
Most Expensive
NZ Jewellers
81fd4847-31a6-45bb-9999-28a73eef0980 · Sep 25
$4,118 USD
View
Price last confirmed 41 days ago
10 more retailers have this diamond
Prices start from $1,177 USDSave up to $1,632 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.

A
1.01ct Round
$1,177 USD