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Marquise|Natural|GIA

1.20ct D I1 Marquise Natural Diamond

EX • D/I1 • GIA 2554200645

Certificate GIA 2554200645

Diamond specifications and retailer prices

From $4,966 AUD
$3,488 USD
As of November 1, 2026
Save $4,867 AUD (50%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $9,833 AUD at NZ Jewellers · As of October 30, 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 I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554200645. Listed at 7 retailers as of October 30, 2026, with prices from $4,966 to $9,833, a $4,867 spread on the same certified stone. NZ Jewellers lists it at $9,833. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554200645
Dimensions10.45 × 5.35 × 3.43 mm
L/W Ratio1.95
Top View
10.45 mm5.35 mm1.20 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554200645
Side View
Table 55.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 64.1%

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: $9,833 AUD|Low: $4,966 AUD|High: $10,250 AUD|Avg: $6,564 AUD|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$4,966 AUD
Retailer 8$5,282 AUD
Retailer 3$5,643 AUD
Retailer 4$5,643 AUD
Retailer 6$5,643 AUD
Retailer 2$6,386 AUD
Retailer 5$6,512 AUD
Retailer 9$7,935 AUD
NZ Jewellers$9,833 AUD

24 data points across 9 retailers

7 retailers$4,966 AUD to $9,833 AUD

B+
Cheapest Retailer
-
$4,966 AUD
$3,488 USD
B+
Retailer 2
-
$5,643 AUD
$3,964 USD
View
B+
Retailer 3
-
$5,643 AUD
$3,964 USD
View
B+
Retailer 4
-
$5,643 AUD
$3,964 USD
View
B+
Retailer 5
-
$6,386 AUD
€4,272 EUR
View
B+
Retailer 6
-
$6,512 AUD
$4,574 USD
View
Most Expensive
B
NZ Jewellers
faea9b6e-07c3-4408-892c-43c515d854ef · Oct 30
$9,833 AUD
$6,907 USD
View
6 more retailers have this diamond
Prices start from $4,966 AUDSave up to $4,867 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
$4,966 AUD