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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1568676821

Certificate GIA 1568676821

Diamond specifications and retailer prices

From $1,847 SGD
As of November 1, 2026
Save $1,523 SGD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,362 SGD at MOH London · As of October 29, 2026
View at MOH London

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 1568676821. Listed at 14 retailers as of November 1, 2026, with a 82% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1568676821
Dimensions6.49 × 6.44 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.49 mm6.44 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1568676821
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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 1
Current: $4,362 SGD|Low: $1,830 SGD|High: $4,362 SGD|Avg: $2,686 SGD|+0.4%
MOH London
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
November 2, 2026
Retailer 12$1,847 SGD
Retailer 10$1,952 SGD
Retailer 9$2,382 SGD
Retailer 13$2,382 SGD
Retailer 5$2,477 SGD
Retailer 11$2,477 SGD
Retailer 6$2,478 SGD
Retailer 3$2,579 SGD
Retailer 7$2,592 SGD
Retailer 4$2,855 SGD
Retailer 8$2,857 SGD
Retailer 14$3,044 SGD
Retailer 2$3,370 SGD
MOH London$4,362 SGD

10 data points across 14 retailers

14 retailers$1,847 SGD to $3,370 SGD

A
Cheapest Retailer
-
$1,847 SGD
A
Retailer 2
-
$1,952 SGD
View
B+
Retailer 3
-
$2,382 SGD
View
B+
Retailer 4
-
$2,382 SGD
View
Retailer 5
-
$2,477 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,477 SGD
View
B+
Retailer 7
-
$2,478 SGD
View
Retailer 8
-
$2,579 SGD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$2,592 SGD
View
B+
Retailer 10
-
$2,855 SGD
View
B+
Retailer 11
-
$2,857 SGD
View
B
Retailer 12
-
$3,044 SGD
View
B
Retailer 13
-
$3,370 SGD
View
Most Expensive
MOH London
24D13D8A2 · Oct 29
$4,362 SGD
£2,689 GBP
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from $1,847 SGDSave up to $1,523 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
$1,847 SGD