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Round|Natural|GIA

1.03ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556574821

Certificate GIA 2556574821

Diamond specifications and retailer prices

From $4,899 SGD
$3,832 USD
As of October 30, 2026
Save $4,886 SGD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,704 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 2556574821. Listed at 15 retailers as of October 30, 2026, with a 100% 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556574821
Dimensions6.43 × 6.41 × 4.03 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.43 mm6.41 mm1.03 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556574821
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $10,704 SGD|Low: $2,379 SGD|High: $10,704 SGD|Avg: $5,734 SGD
NZ Jewellers
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 1, 2026
Retailer 8$2,379 SGD
Retailer 7$2,812 SGD
Retailer 12$4,820 SGD
Retailer 3$4,899 SGD
Retailer 4$5,046 SGD
Retailer 15$5,280 SGD
Retailer 5$5,566 SGD
Retailer 13$5,566 SGD
Retailer 14$5,566 SGD
Retailer 10$6,071 SGD
Retailer 6$6,423 SGD
Retailer 2$6,534 SGD
Retailer 16$6,784 SGD
Retailer 11$7,552 SGD
Retailer 9$9,785 SGD
NZ Jewellers$10,704 SGD

21 data points across 16 retailers

15 retailers$4,899 SGD to $9,785 SGD

Retailer 1
-
$2,812 SGD
$2,200 USD
Price last confirmed 28 days ago
Retailer 2
-
$4,820 SGD
$3,770 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$4,899 SGD
$3,832 USD
View
B
Retailer 4
-
$5,046 SGD
$3,947 USD
View
B
Retailer 5
-
$5,280 SGD
$4,130 USD
View
B
Retailer 6
-
$5,566 SGD
$4,354 USD
View
B
Retailer 7
-
$5,566 SGD
$4,354 USD
View
B
Retailer 8
-
$5,566 SGD
$4,354 USD
View
B
Retailer 9
-
$6,071 SGD
£3,739 GBP
View
B
Retailer 10
-
$6,106 SGD
$4,776 USD
View
B
Retailer 11
-
$6,423 SGD
$5,024 USD
View
B
Retailer 12
-
$6,534 SGD
€4,868 EUR
View
B
Retailer 13
-
$7,552 SGD
ZAR 95,440 ZAR
View
B
Retailer 14
-
$9,785 SGD
£6,027 GBP
View
Most Expensive
NZ Jewellers
2941b8e2-fb7e-40b5-9a24-504f2ce5863b · Oct 30
$10,704 SGD
$8,373 USD
View
Price under review
14 more retailers have this diamond
Prices start from $4,899 SGDSave up to $4,886 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.

B
1.03ct Round
$4,899 SGD