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Round|Natural|GIA

1.01ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1423732075

Certificate GIA 1423732075

Diamond specifications and retailer prices

From $1,291 USD
As of November 4, 2026
Save $2,371 USD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,662 USD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1423732075. Listed at 12 retailers as of November 4, 2026, with prices from $1,291 to $3,662, a $2,371 spread on the same certified stone. Helzberg Diamonds lists it at $3,662. 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

1.01
Carat
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1423732075
Dimensions6.45 × 6.42 × 3.97 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.45 mm6.42 mm1.01 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1423732075
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,662 USD|Low: $1,291 USD|High: $3,734 USD|Avg: $2,145 USD|-1.9%
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 4, 2026
Retailer 2$1,291 USD
Retailer 16$1,295 USD
Retailer 15$1,301 USD
Retailer 14$1,538 USD
Retailer 9$1,539 USD
Retailer 5$1,632 USD
Retailer 3$1,701 USD
Retailer 11$1,847 USD
Retailer 10$1,947 USD
Retailer 4$2,041 USD
Retailer 12$2,085 USD
Retailer 8$2,373 USD
Retailer 13$2,569 USD
Retailer 6$2,628 USD
Retailer 7$3,399 USD
Helzberg Diamonds$3,662 USD

31 data points across 16 retailers

12 retailers$1,291 USD to $3,662 USD

A
Cheapest Retailer
-
$1,291 USD
A
Retailer 2
-
$1,295 USD
View
Final sale: no returns
A
Retailer 3
-
$1,301 USD
View
A
Retailer 4
-
$1,538 USD
View
A
Retailer 5
-
$1,539 USD
View
Retailer 6
-
$1,632 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$1,701 USD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$1,847 USD
View
A
Retailer 9
-
$1,947 USD
View
A
Retailer 10
-
$2,085 USD
View
A
Retailer 11
-
$2,569 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRLIKIGNHGLI · Nov 6
$3,662 USD
View
11 more retailers have this diamond
Prices start from $1,291 USDSave up to $2,371 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
1.01ct Round
$1,291 USD