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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 2547694625

Certificate GIA 2547694625

Diamond specifications and retailer prices

From $6,680 AUD
As of November 6, 2026
Save $5,750 AUD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $12,431 AUD at NZ Jewellers · As of November 3, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547694625. Listed at 8 retailers as of November 3, 2026, with prices from $6,680 to $12,431, a $5,750 spread on the same certified stone. NZ Jewellers lists it at $12,431. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle44°
Pavilion angle36.95°
OriginNatural
Grading LabGIA
CertificateGIA 2547694625
Dimensions9.79 × 5.51 × 3.46 mm
L/W Ratio1.78
Top View
9.79 mm5.51 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2547694625
Side View
Table 60.0%Crown 44°Girdle: Very ThickPavilion 36.95°Culet: NoneDepth 62.8%

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 6
Current: $12,431 AUD|Low: $6,680 AUD|High: $12,658 AUD|Avg: $8,584 AUD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$6,680 AUD
Retailer 7$6,986 AUD
Retailer 5$7,249 AUD
Retailer 8$7,433 AUD
Retailer 10$7,433 AUD
Retailer 9$7,616 AUD
Retailer 11$8,339 AUD
Retailer 12$8,419 AUD
Retailer 3$8,791 AUD
Retailer 4$9,163 AUD
Retailer 2$11,838 AUD
NZ Jewellers$12,431 AUD

19 data points across 12 retailers

8 retailers$6,680 AUD to $12,431 AUD

A
Cheapest Retailer
-
$6,680 AUD
B+
Retailer 2
-
$6,986 AUD
View
B+
Retailer 3
-
$7,249 AUD
View
B+
Retailer 4
-
$7,433 AUD
View
B+
Retailer 5
-
$7,433 AUD
View
B+
Retailer 6
-
$7,616 AUD
View
B
Retailer 7
-
$11,838 AUD
View
Most Expensive
B
NZ Jewellers
ae720140-436c-4d2a-b04d-006ac9ae1218 · Nov 3
$12,431 AUD
$8,541 USD
View
7 more retailers have this diamond
Prices start from $6,680 AUDSave up to $5,750 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
$6,680 AUD