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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555742497

Certificate GIA 6555742497

Diamond specifications and retailer prices

From $2,292 USD
As of November 6, 2026
Save $3,784 USD (62%) vs most expensive(unlock to see where)
26 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 6555742497. Listed at 26 retailers as of November 5, 2026, with prices from $2,292 to $6,076, a $3,784 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
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555742497
Dimensions6.44 × 6.46 × 3.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.44 mm6.46 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555742497
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.6%

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: $2,305 USD|High: $4,918 USD|Avg: $3,111 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$2,305 USD
Retailer 1$2,704 USD
Retailer 6$2,734 USD
Retailer 7$2,856 USD
Retailer 8$2,858 USD
Retailer 2$3,058 USD
Retailer 3$3,171 USD
Retailer 4$4,847 USD

42 data points across 8 retailers

26 retailers$2,292 USD to $6,076 USD

A
Cheapest Retailer
-
$2,292 USD
A
Retailer 2
-
$2,305 USD
View
Final sale: no returns
A
Retailer 3
-
$2,310 USD
View
A
Retailer 4
-
$2,358 USD
View
B+
Retailer 5
-
$2,443 USD
View
B+
Retailer 6
-
$2,484 USD
View
B+
Retailer 7
-
$2,633 USD
View
Retailer 8
-
$2,633 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,671 USD
View
B+
Retailer 10
-
$2,704 USD
View
B+
Retailer 11
-
$2,734 USD
View
B+
Retailer 12
-
$2,856 USD
View
B+
Retailer 13
-
$2,856 USD
View
B+
Retailer 14
-
$2,858 USD
View
B+
Retailer 15
-
$2,878 USD
View
B+
Retailer 16
-
$3,010 USD
View
B+
Retailer 17
-
$3,010 USD
View
B+
Retailer 18
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$3,037 USD
View
B+
Retailer 19
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$3,038 USD
View
B+
Retailer 20
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$3,058 USD
View
B
Retailer 21
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$3,110 USD
View
B+
Retailer 22
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$3,171 USD
View
B
Retailer 23
-
$3,522 USD
View
B
Retailer 24
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$4,188 USD
View
B
Retailer 25
-
$4,847 USD
View
Most Expensive
B
NZ Jewellers
3e6af43f-47f0-4dd2-a37d-27fc8b5b5cca · Nov 5
$6,076 USD
View
25 more retailers have this diamond
Prices start from $2,292 USDSave up to $3,784 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
$2,292 USD