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Marquise|Natural|GIA

1.22ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 7556938122

Certificate GIA 7556938122

Diamond specifications and retailer prices

From $4,050 AUD
As of October 31, 2026
Save $3,655 AUD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,705 AUD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.22ct natural marquise diamond

This 1.22ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556938122. Listed at 14 retailers as of October 31, 2026, with prices from $4,050 to $7,705, a $3,655 spread on the same certified stone. Helzberg Diamonds lists it at $7,705. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.22
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.51°
Pavilion angle41.66°
OriginNatural
Grading LabGIA
CertificateGIA 7556938122
Dimensions11.26 × 5.49 × 3.44 mm
L/W Ratio2.05
Culet sizeNone
Top View
11.26 mm5.49 mm1.22 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7556938122
Side View
Table 61.0%Crown 35.51°Girdle: STK-THKPavilion 41.66°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $7,705 AUD|Low: $4,050 AUD|High: $8,185 AUD|Avg: $5,490 AUD|-5.9%
Helzberg 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
November 5, 2026
Retailer 11$4,050 AUD
Retailer 2$4,149 AUD
Retailer 12$4,366 AUD
Retailer 13$4,379 AUD
Retailer 8$4,736 AUD
Retailer 5$4,880 AUD
Retailer 10$5,170 AUD
Retailer 3$5,206 AUD
Retailer 4$5,328 AUD
Retailer 7$5,401 AUD
Retailer 9$5,619 AUD
Retailer 14$6,832 AUD
Retailer 6$7,249 AUD
Helzberg Diamonds$7,705 AUD

29 data points across 14 retailers

14 retailers$4,050 AUD to $7,705 AUD

B+
Cheapest Retailer
-
$4,050 AUD
B+
Retailer 2
-
$4,149 AUD
View
B+
Retailer 3
-
$4,366 AUD
View
B+
Retailer 4
-
$4,379 AUD
View
B+
Retailer 5
-
$4,736 AUD
View
B
Retailer 6
-
$4,880 AUD
View
B+
Retailer 7
-
$5,170 AUD
View
B+
Retailer 8
-
$5,206 AUD
View
B
Retailer 9
-
$5,328 AUD
View
B
Retailer 10
-
$5,401 AUD
View
B
Retailer 11
-
$5,619 AUD
View
B
Retailer 12
-
$6,832 AUD
View
Retailer 13
-
$7,249 AUD
View
Price last confirmed 11 days ago
Most Expensive
B
Helzberg Diamonds
XZRNLLMPJOHII · Nov 3
$7,705 AUD
$5,294 USD
View
13 more retailers have this diamond
Prices start from $4,050 AUDSave up to $3,655 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+
1.22ct Marquise
$4,050 AUD