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Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 1553510515

Certificate GIA 1553510515

Diamond specifications and retailer prices

From $6,893 AUD
As of November 4, 2026
Save $6,932 AUD (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $16,081 AUD at NZ Jewellers · As of September 20, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553510515. Listed at 22 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. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553510515
Dimensions11.08 × 5.51 × 3.17 mm
L/W Ratio2.01
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural, Natural
Top View
11.08 mm5.51 mm1.20 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553510515
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 57.6%

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: Nov 4
Current: $9,661 AUD|Low: $6,334 AUD|High: $14,241 AUD|Avg: $9,571 AUD|-0.2%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 15$6,893 AUD
Retailer 2$7,057 AUD
Retailer 4$7,350 AUD
Retailer 5$7,434 AUD
Retailer 7$7,437 AUD
Retailer 6$7,530 AUD
Retailer 3$7,868 AUD
Retailer 19$8,412 AUD
Retailer 8$8,772 AUD
Retailer 12$8,936 AUD
Retailer 10$9,042 AUD
Retailer 13$9,245 AUD
Retailer 9$9,504 AUD
Retailer 17$9,504 AUD
Retailer 1$9,661 AUD
Retailer 18$9,824 AUD
Retailer 11$11,463 AUD
Retailer 16$13,636 AUD
Retailer 14$13,825 AUD

20 data points across 19 retailers

22 retailers$6,893 AUD to $13,825 AUD

B+
Cheapest Retailer
-
$6,893 AUD
B+
Retailer 2
-
$7,057 AUD
View
B+
Retailer 3
-
$7,350 AUD
View
B+
Retailer 4
-
$7,434 AUD
View
B+
Retailer 5
-
$7,437 AUD
View
B
Retailer 6
-
$7,530 AUD
View
B
Retailer 7
-
$7,868 AUD
View
Final sale: no returns
B
Retailer 8
-
$8,412 AUD
View
Retailer 9
-
$8,711 AUD
View
Price last confirmed 46 days ago
B
Retailer 10
-
$8,772 AUD
View
B
Retailer 11
-
$8,936 AUD
View
Retailer 12
-
$9,042 AUD
View
Price last confirmed 15 days ago
B
Retailer 13
-
$9,245 AUD
View
B
Retailer 14
-
$9,504 AUD
View
B
Retailer 15
-
$9,504 AUD
View
B
Retailer 16
-
$9,661 AUD
View
B
Retailer 17
-
$9,824 AUD
View
Retailer 18
-
$10,051 AUD
View
Price last confirmed 62 days ago
Retailer 19
-
$10,051 AUD
View
Price last confirmed 46 days ago
B
Retailer 20
-
$13,636 AUD
View
B
Retailer 21
-
$13,825 AUD
View
Most Expensive
NZ Jewellers
82d65a82-34c3-4626-8871-b0ba597b5013 · Sep 20
$16,081 AUD
$11,049 USD
View
Price last confirmed 47 days ago
21 more retailers have this diamond
Prices start from $6,893 AUDSave up to $6,932 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
$6,893 AUD