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Marquise|Natural|IGI

1.21ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 770656600

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 770656600

Diamond specifications and retailer prices

From $2,106 SGD
As of November 5, 2026
Save $3,463 SGD (62%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,569 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 770656600. Listed at 8 retailers as of November 5, 2026, with prices from $2,106 to $5,569, a $3,463 spread on the same certified stone. NZ Jewellers lists it at $5,569. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle44.6°
Pavilion angle34.4°
OriginNatural
Grading LabIGI
CertificateIGI 770656600
Dimensions10.33 × 5.45 × 3.24 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Top View
10.33 mm5.45 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 770656600
Side View
Table 60.0%Crown 44.6°Girdle: THK-VTKPavilion 34.4°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
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: $5,569 SGD|Low: $1,930 SGD|High: $5,830 SGD|Avg: $3,056 SGD|-4.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4$2,106 SGD
Retailer 2$2,215 SGD
Retailer 6$2,284 SGD
Retailer 8$2,359 SGD
Retailer 7$2,389 SGD
Retailer 3$3,045 SGD
Retailer 5$3,988 SGD
NZ Jewellers$5,569 SGD

42 data points across 8 retailers

8 retailers$2,106 SGD to $5,569 SGD

A
Cheapest Retailer
-
$2,106 SGD
A
Retailer 2
-
$2,215 SGD
View
A
Retailer 3
-
$2,284 SGD
View
B+
Retailer 4
-
$2,359 SGD
View
B+
Retailer 5
-
$2,389 SGD
View
B+
Retailer 6
-
$3,045 SGD
View
B
Retailer 7
-
$3,988 SGD
View
Most Expensive
B
NZ Jewellers
c29f788d-337b-418e-a9e7-16f9ddd7a0e5 · Nov 5
$5,569 SGD
$4,345 USD
View
7 more retailers have this diamond
Prices start from $2,106 SGDSave up to $3,463 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 Marquise
$2,106 SGD