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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1519052866

Certificate GIA 1519052866

Diamond specifications and retailer prices

From $2,971 USD
As of November 6, 2026
Save $3,196 USD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,167 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1519052866. Listed at 18 retailers as of November 5, 2026, with prices from $2,971 to $6,167, a $3,196 spread on the same certified stone. Diamond Quarter lists it at $6,167. 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

1.05
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1519052866
Dimensions6.52 × 6.49 × 4.04 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
6.52 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519052866
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $3,203 USD|Low: $3,020 USD|High: $5,665 USD|Avg: $3,746 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,020 USD
Retailer 8$3,089 USD
Retailer 1$3,203 USD
Retailer 2$3,442 USD
Retailer 9$3,575 USD
Retailer 4$3,886 USD
Retailer 3$3,888 USD
Retailer 5$4,085 USD
Retailer 6$5,582 USD

34 data points across 9 retailers

18 retailers$2,971 USD to $6,167 USD

B+
Cheapest Retailer
-
$2,971 USD
B+
Retailer 2
-
$3,020 USD
View
B+
Retailer 3
-
$3,089 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,203 USD
View
B+
Retailer 5
-
$3,235 USD
View
Retailer 6
-
$3,347 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,347 USD
View
B+
Retailer 8
-
$3,442 USD
View
B+
Retailer 9
-
$3,476 USD
View
Retailer 10
-
$3,575 USD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$3,698 USD
View
B
Retailer 12
-
$3,862 USD
View
B+
Retailer 13
-
$3,886 USD
View
B+
Retailer 14
-
$3,888 USD
View
B
Retailer 15
-
$4,085 USD
View
B
Retailer 16
-
$5,582 USD
View
B
Retailer 17
-
$5,831 USD
View
Most Expensive
B
Diamond Quarter
1.05SI1H1566220DN · Nov 5
$6,167 USD
£4,856 GBP
View
17 more retailers have this diamond
Prices start from $2,971 USDSave up to $3,196 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+
1.05ct Round
$2,971 USD