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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 3455453944

Certificate GIA 3455453944

Diamond specifications and retailer prices

From $2,259 USD
As of November 6, 2026
Save $3,817 USD (63%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,076 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3455453944. Listed at 22 retailers as of November 5, 2026, with prices from $2,259 to $6,076, a $3,817 spread on the same certified stone. NZ Jewellers lists it at $6,076. 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

1.00
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3455453944
Dimensions6.38 × 6.32 × 3.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.38 mm6.32 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3455453944
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.2%

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: $2,704 USD|Low: $2,095 USD|High: $4,918 USD|Avg: $2,990 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$2,259 USD
Retailer 4$2,275 USD
Retailer 6$2,430 USD
Retailer 1$2,704 USD
Retailer 7$2,734 USD
Retailer 2$3,058 USD
Retailer 3$3,171 USD
Retailer 5$4,860 USD

43 data points across 8 retailers

22 retailers$2,259 USD to $6,076 USD

Retailer 1
-
$2,165 USD
Price last confirmed 26 days ago
A
Retailer 2
-
$2,259 USD
View
A
Retailer 3
-
$2,275 USD
View
A
Retailer 4
-
$2,310 USD
View
B+
Retailer 5
-
$2,358 USD
View
B+
Retailer 6
-
$2,430 USD
View
Final sale: no returns
B+
Retailer 7
-
$2,443 USD
View
Retailer 8
-
$2,633 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,633 USD
View
B+
Retailer 10
-
$2,671 USD
View
B+
Retailer 11
-
$2,704 USD
View
B+
Retailer 12
-
$2,734 USD
View
B
Retailer 13
-
$3,010 USD
View
B
Retailer 14
-
$3,010 USD
View
B
Retailer 15
-
$3,038 USD
View
B+
Retailer 16
-
$3,058 USD
View
B
Retailer 17
-
$3,110 USD
View
B+
Retailer 18
-
$3,171 USD
View
Retailer 19
-
$3,375 USD
View
Price last confirmed 14 days ago
B
Retailer 20
-
$4,860 USD
View
B
Retailer 21
-
$5,971 USD
View
Most Expensive
B
NZ Jewellers
bcb0ac1b-07bb-4a7d-b9c3-dcd4980bfa5b · Nov 5
$6,076 USD
View
21 more retailers have this diamond
Prices start from $2,259 USDSave up to $3,817 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
1.00ct Round
$2,259 USD