Marquise|Natural|GIA

1.20ct G SI2 Marquise Natural Diamond

GD • G/SI2 • GIA 6551515485

Certificate GIA 6551515485

Diamond specifications and retailer prices

From $5,762 AUD
$4,038 USD
As of November 1, 2026
Save $5,852 AUD (50%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $12,196 AUD at NZ Jewellers · As of October 21, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551515485. Listed at 23 retailers as of November 1, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.53°
Pavilion angle37.56°
OriginNatural
Grading LabGIA
CertificateGIA 6551515485
Dimensions10.01 × 5.44 × 3.47 mm
L/W Ratio1.84
Culet sizeNone
Top View
10.01 mm5.44 mm1.20 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551515485
Side View
Table 58.0%Crown 42.53°Girdle: STK-VTKPavilion 37.56°Culet: NoneDepth 63.7%

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 1
Current: $7,209 AUD|Low: $6,097 AUD|High: $11,754 AUD|Avg: $8,439 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$6,097 AUD
Retailer 6$6,607 AUD
Retailer 1$7,209 AUD
Retailer 3$7,279 AUD
Retailer 2$8,249 AUD
Retailer 5$10,927 AUD
Retailer 4$11,614 AUD

38 data points across 7 retailers

23 retailers$5,762 AUD to $11,614 AUD

B+
Cheapest Retailer
-
$5,762 AUD
$4,038 USD
B
Retailer 2
-
$6,097 AUD
$4,273 USD
View
Final sale: no returns
B
Retailer 3
-
$6,149 AUD
$4,309 USD
View
B
Retailer 4
-
$6,559 AUD
$4,597 USD
View
B
Retailer 5
-
$6,607 AUD
$4,630 USD
View
Retailer 6
-
$6,607 AUD
$4,630 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$6,607 AUD
$4,630 USD
View
Price last confirmed 26 days ago
B
Retailer 8
-
$6,607 AUD
$4,630 USD
View
Retailer 9
-
$6,607 AUD
$4,630 USD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$7,135 AUD
$5,000 USD
View
B
Retailer 11
-
$7,135 AUD
$5,000 USD
View
B
Retailer 12
-
$7,209 AUD
£3,978 GBP
View
B
Retailer 13
-
$7,279 AUD
£4,017 GBP
View
B
Retailer 14
-
$7,363 AUD
$5,160 USD
View
B
Retailer 15
-
$7,622 AUD
$5,342 USD
View
Retailer 16
-
$7,622 AUD
$5,342 USD
View
Price last confirmed 24 days ago
Retailer 17
-
$7,622 AUD
$5,342 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$8,049 AUD
$5,641 USD
View
Price last confirmed 18 days ago
B
Retailer 19
-
$8,249 AUD
€5,506 EUR
View
C
Retailer 20
-
$10,927 AUD
£6,030 GBP
View
C
Retailer 21
-
$11,614 AUD
£6,409 GBP
View
Retailer 22
-
$12,196 AUD
$8,547 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
60fa1b14-bc62-4775-852e-347243f6c78a · Oct 21
$12,196 AUD
$8,547 USD
View
Price last confirmed 12 days ago
22 more retailers have this diamond
Prices start from $5,762 AUDSave up to $5,852 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
$5,762 AUD