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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 $1,649 SGD
As of November 4, 2026
Save $3,028 SGD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,677 SGD 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 $1,649 to $4,677, a $3,028 spread on the same certified stone. Helzberg Diamonds lists it at $4,677. 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
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: $4,677 SGD|Low: $1,649 SGD|High: $4,769 SGD|Avg: $2,740 SGD|-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$1,649 SGD
Retailer 16$1,654 SGD
Retailer 15$1,662 SGD
Retailer 14$1,964 SGD
Retailer 9$1,966 SGD
Retailer 5$2,085 SGD
Retailer 3$2,173 SGD
Retailer 11$2,359 SGD
Retailer 10$2,487 SGD
Retailer 4$2,607 SGD
Retailer 12$2,663 SGD
Retailer 8$3,031 SGD
Retailer 13$3,281 SGD
Retailer 6$3,357 SGD
Retailer 7$4,342 SGD
Helzberg Diamonds$4,677 SGD

31 data points across 16 retailers

12 retailers$1,649 SGD to $4,677 SGD

A
Cheapest Retailer
-
$1,649 SGD
A
Retailer 2
-
$1,654 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,662 SGD
View
A
Retailer 4
-
$1,964 SGD
View
A
Retailer 5
-
$1,966 SGD
View
Retailer 6
-
$2,085 SGD
View
Price last confirmed 27 days ago
Retailer 7
-
$2,173 SGD
View
Price last confirmed 27 days ago
A
Retailer 8
-
$2,359 SGD
View
A
Retailer 9
-
$2,487 SGD
View
A
Retailer 10
-
$2,663 SGD
View
A
Retailer 11
-
$3,281 SGD
View
Most Expensive
B+
Helzberg Diamonds
XZRLIKIGNHGLI · Nov 6
$4,677 SGD
$3,662 USD
View
11 more retailers have this diamond
Prices start from $1,649 SGDSave up to $3,028 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
$1,649 SGD