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Round|Natural|GIA

1.21ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6552883615

Certificate GIA 6552883615

Diamond specifications and retailer prices

From $2,321 SGD
As of November 6, 2026
Save $3,064 SGD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,444 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552883615. Listed at 16 retailers as of November 4, 2026, with a 132% 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

1.21
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6552883615
Dimensions6.83 × 6.88 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
6.83 mm6.88 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552883615
Side View
Table 58.0%Crown 33°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.5%

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: $2,404 SGD|Low: $2,289 SGD|High: $5,464 SGD|Avg: $3,254 SGD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$2,321 SGD
Retailer 1$2,404 SGD
Retailer 3$2,700 SGD
Retailer 7$3,082 SGD
Retailer 8$3,082 SGD
Retailer 4$3,243 SGD
Retailer 2$3,819 SGD
Retailer 5$5,385 SGD

40 data points across 8 retailers

16 retailers$2,321 SGD to $5,385 SGD

A
Cheapest Retailer
-
$2,321 SGD
A
Retailer 2
-
$2,404 SGD
View
A
Retailer 3
-
$2,700 SGD
View
B+
Retailer 4
-
$2,891 SGD
View
Retailer 5
-
$3,082 SGD
View
Price last confirmed 21 days ago
Retailer 6
-
$3,082 SGD
View
Price last confirmed 39 days ago
Retailer 7
-
$3,082 SGD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$3,168 SGD
View
B+
Retailer 9
-
$3,220 SGD
View
Retailer 10
-
$3,224 SGD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$3,243 SGD
View
B+
Retailer 12
-
$3,260 SGD
View
Retailer 13
-
$3,556 SGD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$3,819 SGD
View
B
Retailer 15
-
$5,385 SGD
View
Most Expensive
NZ Jewellers
8aa38445-51ea-4ae4-b9cb-f62b9f442c85 · Sep 28
$6,444 SGD
$5,045 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $2,321 SGDSave up to $3,064 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
1.21ct Round
$2,321 SGD