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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 $3,307 SGD
As of November 6, 2026
Save $5,324 SGD (62%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $8,631 SGD 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 $3,307 to $8,631, a $5,324 spread on the same certified stone. Diamond Quarter lists it at $8,631. 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
Colour
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: $3,307 SGD|Low: $3,285 SGD|High: $7,731 SGD|Avg: $4,779 SGD|-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$3,307 SGD
Retailer 19$3,318 SGD
Retailer 11$3,788 SGD
Retailer 5$3,939 SGD
Retailer 18$3,998 SGD
Retailer 3$4,021 SGD
Retailer 10$4,095 SGD
Retailer 6$4,273 SGD
Retailer 4$4,437 SGD
Retailer 9$4,437 SGD
Retailer 14$4,536 SGD
Retailer 12$4,606 SGD
Retailer 7$4,608 SGD
Retailer 8$4,621 SGD
Retailer 13$4,829 SGD
Retailer 16$4,844 SGD
Retailer 2$5,119 SGD
Retailer 15$5,416 SGD
Retailer 17$7,399 SGD
Retailer 20$7,731 SGD

30 data points across 20 retailers

24 retailers$3,307 SGD to $8,631 SGD

A
Cheapest Retailer
-
$3,307 SGD
A
Retailer 2
-
$3,318 SGD
View
B+
Retailer 3
-
$3,788 SGD
View
B+
Retailer 4
-
$3,939 SGD
View
B+
Retailer 5
-
$3,998 SGD
View
B+
Retailer 6
-
$4,021 SGD
View
B+
Retailer 7
-
$4,095 SGD
View
Final sale: no returns
B+
Retailer 8
-
$4,273 SGD
View
B+
Retailer 9
-
$4,437 SGD
View
Retailer 10
-
$4,437 SGD
View
Price last confirmed 8 days ago
Retailer 11
-
$4,509 SGD
View
Price last confirmed 43 days ago
B+
Retailer 12
-
$4,536 SGD
View
B+
Retailer 13
-
$4,606 SGD
View
B
Retailer 14
-
$4,608 SGD
View
B
Retailer 15
-
$4,621 SGD
View
Retailer 16
-
$4,829 SGD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$4,844 SGD
View
B
Retailer 18
-
$5,119 SGD
View
Retailer 19
-
$5,204 SGD
View
Price last confirmed 45 days ago
B+
Retailer 20
-
$5,416 SGD
View
B
Retailer 21
-
$7,399 SGD
View
B
Retailer 22
-
$7,731 SGD
View
Retailer 23
-
$7,857 SGD
View
Price last confirmed 42 days ago
Most Expensive
B
Diamond Quarter
1.01SI1G252251BDN · Nov 5
$8,631 SGD
£5,320 GBP
View
23 more retailers have this diamond
Prices start from $3,307 SGDSave up to $5,324 SGD

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
$3,307 SGD