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Marquise|Natural|GIA

1.21ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 6541969822

Certificate GIA 6541969822

Diamond specifications and retailer prices

From $3,925 AUD
As of November 6, 2026
6 retailers carry this diamond
Most expensive: $9,438 AUD at NZ Jewellers · As of September 30, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541969822. Listed at 6 retailers as of November 6, 2026. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.09°
Pavilion angle38.44°
OriginNatural
Grading LabGIA
CertificateGIA 6541969822
Dimensions11.40 × 5.31 × 3.22 mm
L/W Ratio2.15
Top View
11.40 mm5.31 mm1.21 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541969822
Side View
Table 57.0%Crown 39.09°Girdle: STK-THKPavilion 38.44°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,438 AUD|Low: $3,235 AUD|High: $9,438 AUD|Avg: $5,393 AUD
NZ Jewellers
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
October 6, 2026
Retailer 5$3,235 AUD
Retailer 16$3,554 AUD
Retailer 3$3,762 AUD
Retailer 7$3,925 AUD
Retailer 4$4,260 AUD
Retailer 6$4,790 AUD
Retailer 12$4,809 AUD
Retailer 14$5,417 AUD
Retailer 10$5,625 AUD
Retailer 13$5,628 AUD
Retailer 2$5,629 AUD
Retailer 11$5,638 AUD
Retailer 8$5,985 AUD
Retailer 15$6,251 AUD
Retailer 9$9,168 AUD
NZ Jewellers$9,438 AUD

10 data points across 16 retailers

6 retailers

B+
Cheapest Retailer
-
$3,925 AUD
Retailer 2
-
$5,417 AUD
View
Price last confirmed 36 days ago
Retailer 3
-
$5,625 AUD
View
Price last confirmed 36 days ago
Retailer 4
-
$6,251 AUD
View
Price last confirmed 38 days ago
Retailer 5
-
$9,168 AUD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
fe303aa8-f6d0-4c68-8871-ee0469ae6d00 · Sep 30
$9,438 AUD
$6,485 USD
View
Price last confirmed 37 days ago
5 more retailers have this diamond
Prices start from $3,925 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
$3,925 AUD