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Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 7562185918

Certificate GIA 7562185918

Diamond specifications and retailer prices

From $8,107 AUD
As of November 5, 2026
Save $5,960 AUD (42%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $14,066 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct 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 7562185918. Listed at 9 retailers as of November 3, 2026, with prices from $8,107 to $14,066, a $5,960 spread on the same certified stone. NZ Jewellers lists it at $14,066. 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

1.21
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle37.43°
Pavilion angle39.32°
OriginNatural
Grading LabGIA
CertificateGIA 7562185918
Dimensions10.67 × 5.57 × 3.49 mm
L/W Ratio1.92
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Needle
Top View
10.67 mm5.57 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7562185918
Side View
Table 58.0%Crown 37.43°Girdle: THK-VTKPavilion 39.32°Culet: NoneDepth 62.6%

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 5
Current: $14,066 AUD|Low: $7,852 AUD|High: $14,849 AUD|Avg: $9,884 AUD|-5.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$8,107 AUD
Retailer 7$8,107 AUD
Retailer 3$8,203 AUD
Retailer 6$8,409 AUD
Retailer 8$8,409 AUD
Retailer 9$8,673 AUD
Retailer 2$9,504 AUD
Retailer 4$12,388 AUD
NZ Jewellers$14,066 AUD

45 data points across 9 retailers

9 retailers$8,107 AUD to $14,066 AUD

B+
Cheapest Retailer
-
$8,107 AUD
B+
Retailer 2
-
$8,107 AUD
View
B+
Retailer 3
-
$8,203 AUD
View
B+
Retailer 4
-
$8,409 AUD
View
B+
Retailer 5
-
$8,409 AUD
View
Retailer 6
-
$8,673 AUD
View
Price last confirmed 28 days ago
B+
Retailer 7
-
$9,504 AUD
View
B
Retailer 8
-
$12,388 AUD
View
Most Expensive
B
NZ Jewellers
8839e944-3533-45b3-ada4-8b9cbfdcc6b5 · Nov 3
$14,066 AUD
$9,665 USD
View
8 more retailers have this diamond
Prices start from $8,107 AUDSave up to $5,960 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+
1.21ct Marquise
$8,107 AUD