Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5242070995

Certificate GIA 5242070995

Diamond specifications and retailer prices

From $2,150 USD
SGD 2,905 SGD
As of October 31, 2026
Save $2,027 USD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,177 USD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

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 5242070995. Listed at 16 retailers as of October 31, 2026, with prices from $2,150 to $4,177, a $2,027 spread on the same certified stone. Helzberg Diamonds lists it at $4,177. 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 angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5242070995
Dimensions6.48 × 6.50 × 4.04 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.48 mm6.50 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242070995
Side View
Table 56.0%Crown 34°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.2%

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: $4,177 USD|Low: $1,883 USD|High: $4,215 USD|Avg: $2,696 USD|-0.9%
Helzberg Diamonds
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 1, 2026
Retailer 6$2,150 USD
Retailer 8$2,245 USD
Retailer 13$2,267 USD
Retailer 3$2,311 USD
Retailer 12$2,331 USD
Retailer 10$2,350 USD
Retailer 11$2,503 USD
Retailer 5$2,539 USD
Retailer 16$2,600 USD
Retailer 4$2,881 USD
Retailer 15$2,915 USD
Retailer 2$2,924 USD
Retailer 9$2,994 USD
Retailer 14$3,553 USD
Retailer 7$3,798 USD
Helzberg Diamonds$4,177 USD

27 data points across 16 retailers

16 retailers$2,150 USD to $4,177 USD

A
Cheapest Retailer
-
$2,150 USD
SGD 2,905 SGD
A
Retailer 2
-
$2,245 USD
View
A
Retailer 3
-
$2,267 USD
View
A
Retailer 4
-
$2,311 USD
View
B+
Retailer 5
-
$2,331 USD
View
A
Retailer 6
-
$2,350 USD
View
A
Retailer 7
-
$2,503 USD
£1,971 GBP
View
A
Retailer 8
-
$2,539 USD
SGD 3,431 SGD
View
B+
Retailer 9
-
$2,600 USD
View
B+
Retailer 10
-
$2,881 USD
View
B+
Retailer 11
-
$2,915 USD
£2,295 GBP
View
B+
Retailer 12
-
$2,924 USD
View
B+
Retailer 13
-
$2,994 USD
€2,851 EUR
View
B+
Retailer 14
-
$3,553 USD
View
B
Retailer 15
-
$3,798 USD
View
Most Expensive
B
Helzberg Diamonds
XZRLIKIGNGPPL · Nov 1
$4,177 USD
View
15 more retailers have this diamond
Prices start from $2,150 USDSave up to $2,027 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
$2,150 USD