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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6452098443

Certificate GIA 6452098443

Diamond specifications and retailer prices

From $5,889 SGD
As of November 4, 2026
Save $5,446 SGD (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,903 SGD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6452098443. Listed at 18 retailers as of November 4, 2026, with a 92% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6452098443
Dimensions6.81 × 6.76 × 4.26 mm
L/W Ratio1.01
Top View
6.81 mm6.76 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452098443
Side View
Table 57.0%Crown 35.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $12,903 SGD|Low: $5,376 SGD|High: $12,903 SGD|Avg: $8,093 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$5,889 SGD
Retailer 7$6,452 SGD
Retailer 9$6,554 SGD
Retailer 3$6,989 SGD
Retailer 8$6,989 SGD
Retailer 4$7,401 SGD
Retailer 10$7,620 SGD
Retailer 11$8,064 SGD
Retailer 2$8,192 SGD
Retailer 5$11,334 SGD
NZ Jewellers$12,903 SGD

42 data points across 11 retailers

18 retailers$5,889 SGD to $11,334 SGD

B+
Cheapest Retailer
-
$5,889 SGD
B
Retailer 2
-
$5,925 SGD
View
B
Retailer 3
-
$6,095 SGD
View
B
Retailer 4
-
$6,452 SGD
View
Final sale: no returns
B
Retailer 5
-
$6,554 SGD
View
B
Retailer 6
-
$6,989 SGD
View
Retailer 7
-
$6,989 SGD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$6,989 SGD
View
B
Retailer 9
-
$7,401 SGD
View
B
Retailer 10
-
$7,620 SGD
View
B
Retailer 11
-
$7,805 SGD
View
B
Retailer 12
-
$7,805 SGD
View
B
Retailer 13
-
$8,064 SGD
View
B
Retailer 14
-
$8,074 SGD
View
B
Retailer 15
-
$8,192 SGD
View
Retailer 16
-
$8,507 SGD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$11,334 SGD
View
Most Expensive
NZ Jewellers
2dbbae6e-fc61-4a8c-82e7-79b5176a6a54 · Nov 5
$12,903 SGD
$10,068 USD
View
Price under review
17 more retailers have this diamond
Prices start from $5,889 SGDSave up to $5,446 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+
1.21ct Round
$5,889 SGD