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Marquise|Natural|GIA

1.20ct J IF Marquise Natural Diamond

EX • J/IF • GIA 1557156366

Certificate GIA 1557156366

Diamond specifications and retailer prices

From $5,873 AUD
As of November 6, 2026
Save $5,932 AUD (50%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $12,431 AUD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557156366. Listed at 24 retailers as of November 4, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
J
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1557156366
Dimensions10.39 × 5.04 × 3.24 mm
L/W Ratio2.06
Girdle conditionVery Thick
Top View
10.39 mm5.04 mm1.20 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557156366
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.2%

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: Nov 6
Current: $12,431 AUD|Low: $5,696 AUD|High: $12,431 AUD|Avg: $7,872 AUD
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
November 7, 2026
Retailer 16$5,873 AUD
Retailer 15$6,215 AUD
Retailer 4$6,360 AUD
Retailer 9$6,622 AUD
Retailer 12$6,656 AUD
Retailer 5$6,733 AUD
Retailer 14$7,127 AUD
Retailer 7$7,262 AUD
Retailer 8$7,262 AUD
Retailer 2$7,318 AUD
Retailer 3$7,492 AUD
Retailer 6$7,510 AUD
Retailer 13$8,376 AUD
Retailer 10$9,067 AUD
Retailer 11$11,805 AUD
NZ Jewellers$12,431 AUD

37 data points across 16 retailers

24 retailers$5,873 AUD to $11,805 AUD

B+
Cheapest Retailer
-
$5,873 AUD
B+
Retailer 2
-
$6,215 AUD
View
Final sale: no returns
B+
Retailer 3
-
$6,360 AUD
View
B+
Retailer 4
-
$6,622 AUD
View
B+
Retailer 5
-
$6,656 AUD
View
B+
Retailer 6
-
$6,685 AUD
View
Retailer 7
-
$6,733 AUD
View
Price last confirmed 46 days ago
Retailer 8
-
$6,733 AUD
View
Price last confirmed 37 days ago
Retailer 9
-
$6,733 AUD
View
Price last confirmed 30 days ago
Retailer 10
-
$6,733 AUD
View
Price last confirmed 30 days ago
B+
Retailer 11
-
$6,840 AUD
View
B+
Retailer 12
-
$7,127 AUD
View
B
Retailer 13
-
$7,262 AUD
View
B
Retailer 14
-
$7,262 AUD
View
B+
Retailer 15
-
$7,318 AUD
View
Retailer 16
-
$7,492 AUD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$7,510 AUD
View
B
Retailer 18
-
$7,648 AUD
View
Retailer 19
-
$7,769 AUD
View
Price last confirmed 29 days ago
Retailer 20
-
$8,204 AUD
View
Price last confirmed 23 days ago
B
Retailer 21
-
$8,376 AUD
View
B
Retailer 22
-
$9,067 AUD
View
B
Retailer 23
-
$11,805 AUD
View
Most Expensive
NZ Jewellers
fd7d0ccf-3416-4fc6-8306-0b7704add650 · Sep 29
$12,431 AUD
$8,541 USD
View
Price last confirmed 38 days ago
23 more retailers have this diamond
Prices start from $5,873 AUDSave up to $5,932 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+
1.20ct Marquise
$5,873 AUD