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Marquise|Natural|GIA

1.20ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6562043568

Certificate GIA 6562043568

Diamond specifications and retailer prices

From $2,902 AUD
SGD 2,748 SGD
As of November 3, 2026
Save $3,005 AUD (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,907 AUD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562043568. Listed at 12 retailers as of November 3, 2026, with a 104% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle39.4°
Pavilion angle38.34°
OriginNatural
Grading LabGIA
CertificateGIA 6562043568
Dimensions10.77 × 5.52 × 3.41 mm
L/W Ratio1.95
Culet sizeNone
Top View
10.77 mm5.52 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6562043568
Side View
Table 59.0%Crown 39.4°Girdle: STK-THKPavilion 38.34°Culet: NoneDepth 61.7%

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 3
Current: $2,902 AUD|Low: $2,650 AUD|High: $6,445 AUD|Avg: $4,301 AUD|-7.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 3, 2026
Retailer 3$2,650 AUD
Retailer 1$2,902 AUD
Retailer 8$3,567 AUD
Retailer 7$3,617 AUD
Retailer 6$3,629 AUD
Retailer 2$3,952 AUD
Retailer 5$4,229 AUD
Retailer 10$4,259 AUD
Retailer 11$4,427 AUD
Retailer 4$4,673 AUD
Retailer 9$5,532 AUD
Wholesale Diamonds Direct$5,907 AUD

34 data points across 12 retailers

12 retailers$2,902 AUD to $5,907 AUD

A
Cheapest Retailer
-
$2,902 AUD
SGD 2,748 SGD
B+
Retailer 2
-
$3,567 AUD
$2,500 USD
View
B+
Retailer 3
-
$3,617 AUD
$2,535 USD
View
B+
Retailer 4
-
$3,629 AUD
$2,544 USD
View
B+
Retailer 5
-
$3,952 AUD
SGD 3,743 SGD
View
B+
Retailer 6
-
$4,229 AUD
$2,964 USD
View
B+
Retailer 7
-
$4,259 AUD
$2,985 USD
View
B+
Retailer 8
-
$4,427 AUD
$3,102 USD
View
B
Retailer 9
-
$4,673 AUD
€3,119 EUR
View
B
Retailer 10
-
$5,532 AUD
$3,877 USD
View
B
Retailer 11
-
$5,907 AUD
$4,140 USD
View
Most Expensive
Wholesale Diamonds Direct
348918922 · Oct 27
$5,907 AUD
$4,140 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from $2,902 AUDSave up to $3,005 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.

A
1.20ct Marquise
$2,902 AUD