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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555401272

Certificate GIA 6555401272

Diamond specifications and retailer prices

From $1,753 USD
As of November 6, 2026
Save $2,997 USD (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,750 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 6555401272. Listed at 21 retailers as of November 5, 2026, with prices from $1,753 to $4,750, a $2,997 spread on the same certified stone. NZ Jewellers lists it at $4,750. 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 angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555401272
Dimensions6.35 × 6.39 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.35 mm6.39 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555401272
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

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: $2,114 USD|Low: $1,753 USD|High: $4,001 USD|Avg: $2,387 USD|-1.8%
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 3$1,753 USD
Retailer 8$1,760 USD
Retailer 6$1,896 USD
Retailer 9$2,001 USD
Retailer 1$2,114 USD
Retailer 2$2,186 USD
Retailer 4$2,436 USD
Retailer 5$2,454 USD
Retailer 7$2,609 USD
Retailer 10$2,731 USD
Retailer 11$3,970 USD

25 data points across 11 retailers

21 retailers$1,753 USD to $4,750 USD

A
Cheapest Retailer
-
$1,753 USD
A
Retailer 2
-
$1,760 USD
View
A
Retailer 3
-
$1,896 USD
View
A
Retailer 4
-
$2,001 USD
View
A
Retailer 5
-
$2,052 USD
View
A
Retailer 6
-
$2,096 USD
View
Final sale: no returns
A
Retailer 7
-
$2,114 USD
View
A
Retailer 8
-
$2,186 USD
View
Retailer 9
-
$2,272 USD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$2,272 USD
View
B+
Retailer 11
-
$2,377 USD
View
B+
Retailer 12
-
$2,411 USD
View
B+
Retailer 13
-
$2,436 USD
View
B+
Retailer 14
-
$2,454 USD
View
B+
Retailer 15
-
$2,478 USD
View
B+
Retailer 16
-
$2,609 USD
View
B+
Retailer 17
-
$2,621 USD
View
B+
Retailer 18
-
$2,731 USD
View
B
Retailer 19
-
$3,388 USD
View
B
Retailer 20
-
$3,970 USD
View
Most Expensive
B
NZ Jewellers
856f0a8c-3b65-4e36-9112-446ac20fed2e · Nov 5
$4,750 USD
View
20 more retailers have this diamond
Prices start from $1,753 USDSave up to $2,997 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
$1,753 USD