CaratHunter
Plans
Marquise|Natural|IGI

1.21ct K SI1 Marquise Natural Diamond

VG • K/SI1 • IGI 770656547

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 770656547

Diamond specifications and retailer prices

From $2,577 SGD
As of November 6, 2026
Save $2,978 SGD (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,556 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 770656547. Listed at 7 retailers as of November 5, 2026, with prices from $2,577 to $5,556, a $2,978 spread on the same certified stone. NZ Jewellers lists it at $5,556. 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 angle42.1°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 770656547
Dimensions10.94 × 5.42 × 3.49 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Top View
10.94 mm5.42 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 770656547
Side View
Table 60.0%Crown 42.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,556 SGD|Low: $2,359 SGD|High: $6,286 SGD|Avg: $3,561 SGD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$2,577 SGD
Retailer 5$2,658 SGD
Retailer 7$2,714 SGD
Retailer 6$2,780 SGD
Retailer 3$3,554 SGD
Retailer 4$4,643 SGD
NZ Jewellers$5,556 SGD

46 data points across 7 retailers

7 retailers$2,577 SGD to $5,556 SGD

A
Cheapest Retailer
-
$2,577 SGD
A
Retailer 2
-
$2,658 SGD
View
A
Retailer 3
-
$2,714 SGD
View
B+
Retailer 4
-
$2,780 SGD
View
B+
Retailer 5
-
$3,554 SGD
View
B
Retailer 6
-
$4,643 SGD
View
Most Expensive
C
NZ Jewellers
f718b6e1-39f2-49a3-831f-8794aaae8d97 · Nov 5
$5,556 SGD
$4,335 USD
View
6 more retailers have this diamond
Prices start from $2,577 SGDSave up to $2,978 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
$2,577 SGD