Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6535298687

Certificate GIA 6535298687

Diamond specifications and retailer prices

From $2,266 USD
SGD 3,062 SGD
As of October 31, 2026
Save $3,424 USD (60%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,841 USD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct 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 6535298687. Listed at 19 retailers as of October 30, 2026, with a 151% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.03
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6535298687
Dimensions6.52 × 6.49 × 3.97 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.52 mm6.49 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535298687
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.2%

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: Oct 31
Current: $5,690 USD|Low: $2,266 USD|High: $5,841 USD|Avg: $3,187 USD|-2.6%
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 7$2,266 USD
Retailer 3$2,437 USD
Retailer 12$2,505 USD
Retailer 6$2,512 USD
Retailer 15$2,680 USD
Retailer 13$2,722 USD
Retailer 16$2,722 USD
Retailer 5$2,826 USD
Retailer 14$2,863 USD
Retailer 2$2,892 USD
Retailer 4$3,067 USD
Retailer 8$3,131 USD
Retailer 11$3,188 USD
Retailer 10$3,345 USD
Retailer 9$4,769 USD
NZ Jewellers$5,690 USD

44 data points across 16 retailers

19 retailers$2,266 USD to $5,690 USD

A
Cheapest Retailer
-
$2,266 USD
SGD 3,062 SGD
A
Retailer 2
-
$2,437 USD
View
Retailer 3
-
$2,505 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$2,512 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,680 USD
View
B+
Retailer 6
-
$2,722 USD
View
B+
Retailer 7
-
$2,722 USD
View
Retailer 8
-
$2,794 USD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
$2,826 USD
View
B+
Retailer 10
-
$2,863 USD
View
B+
Retailer 11
-
$2,892 USD
£2,277 GBP
View
B+
Retailer 12
-
$3,067 USD
View
Retailer 13
-
$3,131 USD
A$4,816 AUD
View
Price last confirmed 25 days ago
B+
Retailer 14
-
$3,188 USD
£2,510 GBP
View
Retailer 15
-
$3,224 USD
View
Price last confirmed 33 days ago
B+
Retailer 16
-
$3,345 USD
ZAR 54,045 ZAR
View
B
Retailer 17
-
$4,769 USD
£3,755 GBP
View
B
Retailer 18
-
$5,690 USD
View
Most Expensive
NZ Jewellers
6c868698-c8d6-4e5c-9af5-69f95fab10f2 · Sep 28
$5,841 USD
View
Price last confirmed 35 days ago
18 more retailers have this diamond
Prices start from $2,266 USDSave up to $3,424 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
1.03ct Round
$2,266 USD