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Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1563164446

Certificate GIA 1563164446

Diamond specifications and retailer prices

From $2,983 SGD
$2,333 USD
As of October 30, 2026
Save $3,168 SGD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,241 SGD at Torres Jewel Co · As of September 30, 2026
View at Torres Jewel Co

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1563164446. Listed at 14 retailers as of October 30, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1563164446
Dimensions6.48 × 6.51 × 3.98 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
6.48 mm6.51 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563164446
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.3%

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: Oct 30
Current: $3,068 SGD|Low: $2,459 SGD|High: $9,938 SGD|Avg: $4,737 SGD|-39.3%
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
Torres Jewel Co
November 1, 2026
Retailer 5$2,459 SGD
Retailer 8$2,504 SGD
Retailer 3$2,983 SGD
Retailer 1$3,068 SGD
Retailer 15$3,096 SGD
Retailer 16$3,292 SGD
Retailer 7$3,359 SGD
Retailer 9$3,538 SGD
Retailer 14$3,617 SGD
Retailer 6$3,710 SGD
Retailer 11$3,875 SGD
Retailer 2$4,183 SGD
Retailer 13$4,257 SGD
Retailer 12$4,520 SGD
Retailer 10$6,150 SGD
Torres Jewel Co$6,241 SGD
Retailer 4$6,852 SGD

14 data points across 17 retailers

14 retailers$2,983 SGD to $6,150 SGD

Retailer 1
-
$2,504 SGD
HK$15,300 HKD
Price last confirmed 60 days ago
A
Retailer 2
-
$2,983 SGD
$2,333 USD
View
A
Retailer 3
-
$3,068 SGD
$2,400 USD
View
A
Retailer 4
-
$3,096 SGD
$2,422 USD
View
B+
Retailer 5
-
$3,292 SGD
$2,575 USD
View
B+
Retailer 6
-
$3,538 SGD
£2,179 GBP
View
B+
Retailer 7
-
$3,617 SGD
$2,829 USD
View
Retailer 8
-
$3,709 SGD
$2,901 USD
View
Price last confirmed 63 days ago
B+
Retailer 9
-
$3,875 SGD
£2,387 GBP
View
B
Retailer 10
-
$4,183 SGD
$3,272 USD
View
B
Retailer 11
-
$4,257 SGD
$3,330 USD
View
B+
Retailer 12
-
$4,520 SGD
ZAR 57,115 ZAR
View
B
Retailer 13
-
$6,150 SGD
£3,788 GBP
View
Most Expensive
Torres Jewel Co
25689157 · Sep 30
$6,241 SGD
A$7,510 AUD
View
Price last confirmed 32 days ago
13 more retailers have this diamond
Prices start from $2,983 SGDSave up to $3,168 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
$2,983 SGD