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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2514997177

Certificate GIA 2514997177

Diamond specifications and retailer prices

From $3,603 SGD
As of November 6, 2026
Save $3,804 SGD (51%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,737 SGD at NZ Jewellers · As of October 17, 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 2514997177. Listed at 20 retailers as of November 4, 2026, with a 106% 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2514997177
Dimensions6.77 × 6.74 × 4.22 mm
L/W Ratio1.00
Top View
6.77 mm6.74 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2514997177
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: $4,191 SGD|Low: $3,603 SGD|High: $7,515 SGD|Avg: $4,712 SGD|-1.4%
Retailer 1
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 6, 2026
Retailer 15$3,603 SGD
Retailer 12$3,627 SGD
Retailer 16$3,686 SGD
Retailer 10$3,778 SGD
Retailer 8$4,049 SGD
Retailer 1$4,191 SGD
Retailer 3$4,211 SGD
Retailer 2$4,402 SGD
Retailer 5$4,441 SGD
Retailer 6$4,441 SGD
Retailer 9$4,539 SGD
Retailer 4$4,680 SGD
Retailer 14$4,921 SGD
Retailer 7$5,284 SGD
Retailer 13$6,475 SGD
Retailer 11$7,406 SGD

36 data points across 16 retailers

20 retailers$3,603 SGD to $7,406 SGD

A
Cheapest Retailer
-
$3,603 SGD
A
Retailer 2
-
$3,627 SGD
View
A
Retailer 3
-
$3,686 SGD
View
B+
Retailer 4
-
$3,778 SGD
View
B+
Retailer 5
-
$4,049 SGD
View
B+
Retailer 6
-
$4,191 SGD
View
B+
Retailer 7
-
$4,211 SGD
View
B+
Retailer 8
-
$4,402 SGD
View
Retailer 9
-
$4,441 SGD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,441 SGD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$4,539 SGD
View
Retailer 12
-
$4,611 SGD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$4,680 SGD
View
B
Retailer 14
-
$4,921 SGD
View
Retailer 15
-
$5,124 SGD
View
Price last confirmed 60 days ago
Retailer 16
-
$5,124 SGD
View
Price last confirmed 19 days ago
B
Retailer 17
-
$6,475 SGD
View
B
Retailer 18
-
$7,406 SGD
View
Retailer 19
-
$7,737 SGD
View
Price last confirmed 57 days ago
Most Expensive
NZ Jewellers
47c026bc-2b12-4414-b735-69a546780bda · Oct 17
$7,737 SGD
$6,037 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from $3,603 SGDSave up to $3,804 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
$3,603 SGD