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Marquise|Natural|GIA

1.21ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 2235875742

Certificate GIA 2235875742

Diamond specifications and retailer prices

From $5,606 AUD
As of November 6, 2026
Save $2,167 AUD (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,773 AUD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

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 stated by the retailer rather than the lab and certified by GIA 2235875742. Listed at 7 retailers as of November 5, 2026, with prices from $5,606 to $7,773, a $2,167 spread on the same certified stone. Cape Diamonds lists it at $7,773. 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
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle40.96°
Pavilion angle39.82°
OriginNatural
Grading LabGIA
CertificateGIA 2235875742
Dimensions10.02 × 5.41 × 3.56 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.02 mm5.41 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2235875742
Side View
Table 60.0%Crown 40.96°Girdle: MED-VTKPavilion 39.82°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,773 AUD|Low: $3,369 AUD|High: $7,773 AUD|Avg: $5,789 AUD
Cape Diamonds
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
November 5, 2026
Retailer 4$3,369 AUD
Retailer 3$4,665 AUD
Retailer 13$4,935 AUD
Retailer 14$5,042 AUD
Retailer 15$5,475 AUD
Retailer 5$5,503 AUD
Retailer 11$5,606 AUD
Retailer 12$6,040 AUD
Retailer 2$6,175 AUD
Retailer 10$6,468 AUD
Retailer 9$6,695 AUD
Retailer 7$6,820 AUD
Retailer 6$7,063 AUD
Retailer 8$7,197 AUD
Cape Diamonds$7,773 AUD

6 data points across 15 retailers

7 retailers$5,606 AUD to $7,773 AUD

B
Cheapest Retailer
-
$5,606 AUD
B
Retailer 2
-
$6,040 AUD
View
B
Retailer 3
-
$6,175 AUD
View
B
Retailer 4
-
$6,468 AUD
View
Retailer 5
-
$6,695 AUD
View
Price last confirmed 44 days ago
Retailer 6
-
$7,197 AUD
View
Price last confirmed 10 days ago
Most Expensive
C
Cape Diamonds
cert_2235875742 · Nov 5
$7,773 AUD
ZAR 86,285 ZAR
View
6 more retailers have this diamond
Prices start from $5,606 AUDSave up to $2,167 AUD

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.

B
1.21ct Marquise
$5,606 AUD