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Marquise|Natural|IGI

1.21ct I SI2 Marquise Natural Diamond

VG • I/SI2 • IGI 819641821

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 819641821

Diamond specifications and retailer prices

From $2,534 SGD
As of November 6, 2026
Save $1,663 SGD (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,196 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 819641821. Listed at 6 retailers as of November 6, 2026, with prices from $2,534 to $4,196, a $1,663 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,196. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 819641821
Dimensions10.21 × 5.51 × 3.52 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.21 mm5.51 mm1.21 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 819641821
Side View
Table 59.0%Crown 39.3°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 63.9%

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 6
Current: $2,534 SGD|Low: $2,525 SGD|High: $4,712 SGD|Avg: $3,294 SGD|-11.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Wholesale Diamonds Direct
November 6, 2026
Retailer 1$2,534 SGD
Retailer 3$2,539 SGD
Retailer 5$2,621 SGD
Retailer 4$3,241 SGD
Retailer 2$3,583 SGD
Wholesale Diamonds Direct$4,196 SGD

30 data points across 6 retailers

6 retailers$2,534 SGD to $4,196 SGD

A
Cheapest Retailer
-
$2,534 SGD
A
Retailer 2
-
$2,539 SGD
View
A
Retailer 3
-
$2,621 SGD
View
A
Retailer 4
-
$3,241 SGD
View
B+
Retailer 5
-
$3,583 SGD
View
Most Expensive
B+
Wholesale Diamonds Direct
413305093 · Nov 6
$4,196 SGD
$3,274 USD
View
5 more retailers have this diamond
Prices start from $2,534 SGDSave up to $1,663 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
$2,534 SGD