Marquise|Natural|IGI

1.21ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 743559060

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743559060

Diamond specifications and retailer prices

From $1,984 USD
As of November 2, 2026
Save $2,510 USD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,494 USD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 743559060. Listed at 18 retailers as of October 30, 2026, with prices from $1,984 to $4,494, a $2,510 spread on the same certified stone. NZ Jewellers lists it at $4,494. 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
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle43.4°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 743559060
Dimensions10.98 × 5.45 × 3.37 mm
L/W Ratio2.01
Girdle conditionFaceted
Top View
10.98 mm5.45 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 743559060
Side View
Table 60.0%Crown 43.4°Girdle: THN-STKPavilion 39.1°Culet: NoneDepth 61.8%

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 2
Current: $4,494 USD|Low: $1,984 USD|High: $4,661 USD|Avg: $2,531 USD|-3.6%
NZ Jewellers
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 4$1,984 USD
Retailer 5$1,993 USD
Retailer 14$1,995 USD
Retailer 10$2,000 USD
Retailer 9$2,058 USD
Retailer 2$2,097 USD
Retailer 3$2,150 USD
Retailer 17$2,150 USD
Retailer 7$2,247 USD
Retailer 18$2,249 USD
Retailer 16$2,289 USD
Retailer 11$2,380 USD
Retailer 8$2,440 USD
Retailer 6$2,480 USD
Retailer 13$2,642 USD
Retailer 15$2,936 USD
Retailer 12$3,767 USD
NZ Jewellers$4,494 USD

24 data points across 18 retailers

18 retailers$1,984 USD to $4,494 USD

B+
Cheapest Retailer
-
$1,984 USD
Final sale: no returns
A
Retailer 2
-
$1,993 USD
View
A
Retailer 3
-
$1,995 USD
View
A
Retailer 4
-
$2,000 USD
View
A
Retailer 5
-
$2,058 USD
View
A
Retailer 6
-
$2,097 USD
£1,651 GBP
View
A
Retailer 7
-
$2,150 USD
View
A
Retailer 8
-
$2,150 USD
View
A
Retailer 9
-
$2,247 USD
View
B+
Retailer 10
-
$2,249 USD
View
B+
Retailer 11
-
$2,289 USD
View
B+
Retailer 12
-
$2,380 USD
£1,874 GBP
View
B+
Retailer 13
-
$2,440 USD
View
B+
Retailer 14
-
$2,480 USD
View
B+
Retailer 15
-
$2,642 USD
ZAR 42,688 ZAR
View
B
Retailer 16
-
$2,936 USD
€2,796 EUR
View
B
Retailer 17
-
$3,767 USD
£2,966 GBP
View
Most Expensive
B
NZ Jewellers
a59d7b72-179e-449d-a06b-0a4d91e7de12 · Oct 30
$4,494 USD
View
17 more retailers have this diamond
Prices start from $1,984 USDSave up to $2,510 USD

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
$1,984 USD