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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1246109498

Certificate GIA 1246109498

Diamond specifications and retailer prices

From $2,308 SGD
As of November 4, 2026
Save $1,686 SGD (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,994 SGD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1246109498. Listed at 12 retailers as of November 4, 2026, with prices from $2,308 to $3,994, a $1,686 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,994. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1246109498
Dimensions6.49 × 6.46 × 4.03 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.49 mm6.46 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1246109498
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NDepth 62.1%

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: $3,091 SGD|Low: $2,308 SGD|High: $3,994 SGD|Avg: $2,865 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$2,308 SGD
Retailer 9$2,437 SGD
Retailer 10$2,443 SGD
Retailer 8$2,464 SGD
Retailer 4$2,677 SGD
Retailer 2$2,684 SGD
Retailer 1$3,091 SGD
Retailer 6$3,114 SGD
Retailer 11$3,143 SGD
Retailer 5$3,442 SGD
Retailer 7$3,755 SGD
Wholesale Diamonds Direct$3,994 SGD

9 data points across 12 retailers

12 retailers$2,308 SGD to $3,994 SGD

A
Cheapest Retailer
-
$2,308 SGD
B+
Retailer 2
-
$2,437 SGD
View
B+
Retailer 3
-
$2,443 SGD
View
B+
Retailer 4
-
$2,464 SGD
View
B+
Retailer 5
-
$2,677 SGD
View
B+
Retailer 6
-
$2,684 SGD
View
B
Retailer 7
-
$3,091 SGD
View
B
Retailer 8
-
$3,114 SGD
View
B
Retailer 9
-
$3,143 SGD
View
B
Retailer 10
-
$3,442 SGD
View
B
Retailer 11
-
$3,755 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
636229874 · Nov 4
$3,994 SGD
$3,127 USD
View
11 more retailers have this diamond
Prices start from $2,308 SGDSave up to $1,686 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
1.03ct Round
$2,308 SGD