Round|Natural|GIA

1.01ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556616799

Certificate GIA 2556616799

Diamond specifications and retailer prices

From $2,662 USD
As of November 6, 2026
Save $208 USD (7%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,583 USD at NZ Jewellers · As of October 14, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556616799. Listed at 18 retailers as of November 6, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556616799
Dimensions6.39 × 6.42 × 3.99 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.39 mm6.42 mm1.01 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556616799
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,780 USD|Low: $1,945 USD|High: $4,884 USD|Avg: $2,739 USD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$1,945 USD
Retailer 5$1,952 USD
Retailer 4$2,114 USD
Retailer 13$2,160 USD
Retailer 2$2,161 USD
Retailer 12$2,370 USD
Retailer 3$2,690 USD
Retailer 7$2,727 USD
Retailer 1$2,780 USD
Retailer 6$2,870 USD
Retailer 10$3,016 USD
Retailer 8$3,158 USD
Retailer 9$4,531 USD

32 data points across 13 retailers

18 retailers$2,662 USD to $2,870 USD

Retailer 1
-
$1,945 USD
Price last confirmed 10 days ago
Retailer 2
-
$1,952 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$2,114 USD
View
Price last confirmed 11 days ago
Retailer 4
-
$2,161 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$2,370 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$2,419 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$2,459 USD
View
Price last confirmed 25 days ago
Retailer 8
-
$2,573 USD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$2,662 USD
View
Retailer 10
-
$2,690 USD
View
Price last confirmed 11 days ago
Retailer 11
-
$2,727 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$2,780 USD
View
Retailer 13
-
$2,791 USD
View
Price last confirmed 24 days ago
B+
Retailer 14
-
$2,870 USD
View
Retailer 15
-
$3,016 USD
View
Price last confirmed 11 days ago
Retailer 16
-
$3,158 USD
View
Price last confirmed 10 days ago
Retailer 17
-
$4,531 USD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
7b05b301-76e0-446f-aaa6-767c34210e61 · Oct 14
$5,583 USD
View
Price last confirmed 23 days ago
17 more retailers have this diamond
Prices start from $2,662 USDSave up to $208 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+
1.01ct Round
$2,662 USD