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Round|Natural|GIA

1.01ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2507300122

Certificate GIA 2507300122

Diamond specifications and retailer prices

From $2,589 USD
As of November 6, 2026
Save $4,168 USD (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,757 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2507300122. Listed at 24 retailers as of November 5, 2026, with prices from $2,589 to $6,757, a $4,168 spread on the same certified stone. Diamond Quarter lists it at $6,757. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2507300122
Dimensions6.41 × 6.39 × 4.03 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.41 mm6.39 mm1.01 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507300122
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 63.0%

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: $2,589 USD|Low: $2,572 USD|High: $6,053 USD|Avg: $3,742 USD|-4.8%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 1$2,589 USD
Retailer 19$2,598 USD
Retailer 11$2,966 USD
Retailer 5$3,084 USD
Retailer 18$3,130 USD
Retailer 3$3,148 USD
Retailer 10$3,206 USD
Retailer 6$3,345 USD
Retailer 4$3,474 USD
Retailer 9$3,474 USD
Retailer 14$3,551 USD
Retailer 12$3,606 USD
Retailer 7$3,608 USD
Retailer 8$3,618 USD
Retailer 13$3,781 USD
Retailer 16$3,792 USD
Retailer 2$4,008 USD
Retailer 15$4,240 USD
Retailer 17$5,793 USD
Retailer 20$6,053 USD

30 data points across 20 retailers

24 retailers$2,589 USD to $6,757 USD

A
Cheapest Retailer
-
$2,589 USD
A
Retailer 2
-
$2,598 USD
View
B+
Retailer 3
-
$2,966 USD
View
B+
Retailer 4
-
$3,084 USD
View
B+
Retailer 5
-
$3,130 USD
View
B+
Retailer 6
-
$3,148 USD
View
B+
Retailer 7
-
$3,206 USD
View
Final sale: no returns
B+
Retailer 8
-
$3,345 USD
View
B+
Retailer 9
-
$3,474 USD
View
Retailer 10
-
$3,474 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$3,530 USD
View
Price last confirmed 43 days ago
B+
Retailer 12
-
$3,551 USD
View
B+
Retailer 13
-
$3,606 USD
View
B
Retailer 14
-
$3,608 USD
View
B
Retailer 15
-
$3,618 USD
View
Retailer 16
-
$3,781 USD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$3,792 USD
View
B
Retailer 18
-
$4,008 USD
View
Retailer 19
-
$4,074 USD
View
Price last confirmed 45 days ago
B+
Retailer 20
-
$4,240 USD
View
B
Retailer 21
-
$5,793 USD
View
B
Retailer 22
-
$6,053 USD
View
Retailer 23
-
$6,151 USD
View
Price last confirmed 42 days ago
Most Expensive
B
Diamond Quarter
1.01SI1G252251BDN · Nov 5
$6,757 USD
£5,320 GBP
View
23 more retailers have this diamond
Prices start from $2,589 USDSave up to $4,168 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
$2,589 USD