Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7496000425

Certificate GIA 7496000425

Diamond specifications and retailer prices

From $1,920 USD
As of November 6, 2026
Save $3,482 USD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,402 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7496000425. Listed at 18 retailers as of November 5, 2026, with prices from $1,920 to $5,402, a $3,482 spread on the same certified stone. NZ Jewellers lists it at $5,402. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7496000425
Dimensions6.61 × 6.57 × 3.94 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Indented Natural, Needle
Top View
6.61 mm6.57 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7496000425
Side View
Table 59.0%Crown 32.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 59.7%

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: $2,472 USD|Low: $1,920 USD|High: $4,582 USD|Avg: $2,744 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$1,920 USD
Retailer 10$1,968 USD
Retailer 8$2,115 USD
Retailer 2$2,340 USD
Retailer 1$2,472 USD
Retailer 3$2,718 USD
Retailer 9$2,895 USD
Retailer 6$2,900 USD
Retailer 4$3,154 USD
Retailer 5$4,514 USD

38 data points across 10 retailers

18 retailers$1,920 USD to $5,402 USD

A
Cheapest Retailer
-
$1,920 USD
A
Retailer 2
-
$1,968 USD
View
Final sale: no returns
A
Retailer 3
-
$2,115 USD
View
A
Retailer 4
-
$2,340 USD
View
A
Retailer 5
-
$2,341 USD
View
Retailer 6
-
$2,341 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,449 USD
View
A
Retailer 8
-
$2,472 USD
View
B+
Retailer 9
-
$2,700 USD
View
B+
Retailer 10
-
$2,700 USD
View
B+
Retailer 11
-
$2,701 USD
View
B+
Retailer 12
-
$2,718 USD
View
B+
Retailer 13
-
$2,790 USD
View
Retailer 14
-
$2,895 USD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$2,900 USD
View
B+
Retailer 16
-
$3,154 USD
View
B
Retailer 17
-
$4,514 USD
View
Most Expensive
B
NZ Jewellers
aacb2e51-d5c4-41d4-a85f-c2cbc8c4d6c6 · Nov 5
$5,402 USD
View
17 more retailers have this diamond
Prices start from $1,920 USDSave up to $3,482 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
$1,920 USD