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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6545442420

Certificate GIA 6545442420

Diamond specifications and retailer prices

From $2,608 SGD
As of November 6, 2026
Save $3,374 SGD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,159 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct 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 6545442420. Listed at 18 retailers as of November 4, 2026, with a 129% 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545442420
Dimensions6.79 × 6.84 × 4.23 mm
L/W Ratio1.01
Top View
6.79 mm6.84 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545442420
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.1%

Caratlytics Score

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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 6
Current: $2,696 SGD|Low: $2,608 SGD|High: $6,071 SGD|Avg: $3,884 SGD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$2,608 SGD
Retailer 1$2,696 SGD
Retailer 5$3,035 SGD
Retailer 3$3,603 SGD
Retailer 2$3,618 SGD
Retailer 4$4,179 SGD
Retailer 6$4,247 SGD
Retailer 7$5,983 SGD

34 data points across 8 retailers

18 retailers$2,608 SGD to $5,983 SGD

A
Cheapest Retailer
-
$2,608 SGD
A
Retailer 2
-
$2,696 SGD
View
B+
Retailer 3
-
$3,035 SGD
View
B+
Retailer 4
-
$3,183 SGD
View
B+
Retailer 5
-
$3,222 SGD
View
B+
Retailer 6
-
$3,223 SGD
View
Retailer 7
-
$3,424 SGD
View
Price last confirmed 39 days ago
Retailer 8
-
$3,424 SGD
View
Price last confirmed 25 days ago
B
Retailer 9
-
$3,499 SGD
View
Retailer 10
-
$3,556 SGD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$3,603 SGD
View
B
Retailer 12
-
$3,604 SGD
View
B
Retailer 13
-
$3,618 SGD
View
Retailer 14
-
$3,951 SGD
View
Price last confirmed 38 days ago
B
Retailer 15
-
$4,179 SGD
View
B
Retailer 16
-
$4,247 SGD
View
B
Retailer 17
-
$5,983 SGD
View
Most Expensive
NZ Jewellers
fb4b624f-56ed-4d45-9c91-33d05b7f11c1 · Sep 28
$7,159 SGD
$5,586 USD
View
Price last confirmed 39 days ago
17 more retailers have this diamond
Prices start from $2,608 SGDSave up to $3,374 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
1.20ct Round
$2,608 SGD