CaratHunter
Plans
Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $7,335 AUD
As of November 1, 2026
Save $8,910 AUD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $16,245 AUD at NZ Jewellers · As of November 5, 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. Listed at 10 retailers as of November 1, 2026, with prices from $7,335 to $16,245, a $8,910 spread on the same certified stone. NZ Jewellers lists it at $16,245. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.20 × 5.74 × 3.29 mm
L/W Ratio1.78
Top View
10.20 mm5.74 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 68.0%CrownGirdle: ThickPavilionCuletDepth 57.3%

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: $16,245 AUD|Low: $7,335 AUD|High: $18,293 AUD|Avg: $10,173 AUD|-11.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$7,335 AUD
Retailer 7$8,331 AUD
Retailer 3$8,799 AUD
Retailer 4$8,799 AUD
Retailer 5$8,799 AUD
Retailer 10$8,856 AUD
Retailer 2$9,424 AUD
Retailer 9$9,840 AUD
Retailer 6$10,154 AUD
NZ Jewellers$16,245 AUD

31 data points across 10 retailers

10 retailers$7,335 AUD to $16,245 AUD

B+
Cheapest Retailer
-
$7,335 AUD
B
Retailer 2
-
$8,331 AUD
View
Retailer 3
-
$8,799 AUD
View
Price last confirmed 8 days ago
B
Retailer 4
-
$8,799 AUD
View
B
Retailer 5
-
$8,799 AUD
View
B
Retailer 6
-
$8,856 AUD
View
B
Retailer 7
-
$9,424 AUD
View
B
Retailer 8
-
$9,840 AUD
View
B
Retailer 9
-
$10,154 AUD
View
Most Expensive
C
NZ Jewellers
e9cb07d0-8cb8-4821-aee2-af32967f0286 · Nov 5
$16,245 AUD
$11,162 USD
View
9 more retailers have this diamond
Prices start from $7,335 AUDSave up to $8,910 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
$7,335 AUD