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Round|Natural|IGI

1.21ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 670479205

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479205

Diamond specifications and retailer prices

From $2,682 SGD
As of November 5, 2026
Save $2,506 SGD (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,284 SGD at NZ Jewellers · As of September 21, 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 670479205. Listed at 16 retailers as of November 4, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 670479205
Dimensions6.75 × 6.71 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.75 mm6.71 mm1.21 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479205
Side View
Table 57.0%Crown 36.4°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 63.1%

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 5
Current: $6,284 SGD|Low: $2,604 SGD|High: $6,435 SGD|Avg: $3,618 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 11$2,682 SGD
Retailer 9$2,721 SGD
Retailer 10$2,741 SGD
Retailer 3$2,785 SGD
Retailer 4$3,005 SGD
Retailer 12$3,005 SGD
Retailer 7$3,264 SGD
Retailer 2$3,407 SGD
Retailer 5$3,624 SGD
Retailer 6$3,684 SGD
Retailer 8$5,188 SGD
NZ Jewellers$6,284 SGD

36 data points across 12 retailers

16 retailers$2,682 SGD to $5,188 SGD

A
Cheapest Retailer
-
$2,682 SGD
A
Retailer 2
-
$2,721 SGD
View
A
Retailer 3
-
$2,741 SGD
View
Final sale: no returns
A
Retailer 4
-
$2,785 SGD
View
Retailer 5
-
$2,928 SGD
View
Price last confirmed 102 days ago
Retailer 6
-
$3,005 SGD
View
Price last confirmed 44 days ago
Retailer 7
-
$3,005 SGD
View
Price last confirmed 12 days ago
Retailer 8
-
$3,005 SGD
View
Price last confirmed 11 days ago
A
Retailer 9
-
$3,264 SGD
View
B+
Retailer 10
-
$3,407 SGD
View
Retailer 11
-
$3,468 SGD
View
Price last confirmed 45 days ago
B+
Retailer 12
-
$3,624 SGD
View
B+
Retailer 13
-
$3,684 SGD
View
B
Retailer 14
-
$5,188 SGD
View
Retailer 15
-
$6,284 SGD
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
a1a93c35-1056-4c3f-84cc-3e49603e7c18 · Sep 21
$6,284 SGD
$4,920 USD
View
Price last confirmed 45 days ago
15 more retailers have this diamond
Prices start from $2,682 SGDSave up to $2,506 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
$2,682 SGD