Round|Natural|IGI

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 826681826

Shape and cutting style on the report: Round brilliant

Certificate IGI 826681826

Diamond specifications and retailer prices

From $2,268 USD
As of November 6, 2026
Save $2,981 USD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,249 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 IGI 826681826. Listed at 18 retailers as of November 5, 2026, with prices from $2,268 to $5,249, a $2,981 spread on the same certified stone. NZ Jewellers lists it at $5,249. 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 angle36.4°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 826681826
Dimensions6.42 × 6.46 × 4.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.42 mm6.46 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 826681826
Side View
Table 58.0%Crown 36.4°Girdle: MediumPavilion 41.5°CuletDepth 63.5%

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: $5,249 USD|Low: $2,268 USD|High: $5,249 USD|Avg: $3,042 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 6$2,268 USD
Retailer 4$2,270 USD
Retailer 11$2,317 USD
Retailer 5$2,507 USD
Retailer 14$2,511 USD
Retailer 12$2,627 USD
Retailer 2$2,688 USD
Retailer 3$2,897 USD
Retailer 7$2,927 USD
Retailer 8$2,971 USD
Retailer 9$3,064 USD
Retailer 13$3,538 USD
Retailer 10$4,387 USD
NZ Jewellers$5,249 USD

41 data points across 14 retailers

18 retailers$2,268 USD to $5,249 USD

A
Cheapest Retailer
-
$2,268 USD
A
Retailer 2
-
$2,270 USD
View
A
Retailer 3
-
$2,317 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,507 USD
View
B+
Retailer 5
-
$2,511 USD
View
Retailer 6
-
$2,511 USD
View
Price last confirmed 56 days ago
B+
Retailer 7
-
$2,627 USD
View
B+
Retailer 8
-
$2,651 USD
View
B+
Retailer 9
-
$2,688 USD
View
Retailer 10
-
$2,897 USD
View
Price last confirmed 60 days ago
B+
Retailer 11
-
$2,897 USD
View
B+
Retailer 12
-
$2,927 USD
View
B+
Retailer 13
-
$2,971 USD
View
B+
Retailer 14
-
$3,064 USD
View
B
Retailer 15
-
$3,538 USD
View
B
Retailer 16
-
$4,387 USD
View
Retailer 17
-
$5,249 USD
View
Price last confirmed 57 days ago
Most Expensive
B
NZ Jewellers
19af69cb-3516-48f6-ab75-96d7b98d24ed · Nov 5
$5,249 USD
View
17 more retailers have this diamond
Prices start from $2,268 USDSave up to $2,981 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
1.05ct Round
$2,268 USD