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Marquise|Natural|GIA

1.21ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2245012124

Certificate GIA 2245012124

Diamond specifications and retailer prices

From $7,242 AUD
As of November 5, 2026
Save $8,420 AUD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,662 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 E 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 2245012124. Listed at 19 retailers as of November 5, 2026, with prices from $7,242 to $15,662, a $8,420 spread on the same certified stone. NZ Jewellers lists it at $15,662. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.85°
Pavilion angle40.41°
OriginNatural
Grading LabGIA
CertificateGIA 2245012124
Dimensions10.52 × 5.54 × 3.55 mm
L/W Ratio1.90
Culet sizeNone
Top View
10.52 mm5.54 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2245012124
Side View
Table 60.0%Crown 38.85°Girdle: STK-THKPavilion 40.41°Culet: NoneDepth 64.2%

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: $15,662 AUD|Low: $4,621 AUD|High: $15,662 AUD|Avg: $9,015 AUD
NZ Jewellers
Retailer 2
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Retailer 27
November 6, 2026
Retailer 17$4,621 AUD
Retailer 12$6,794 AUD
Retailer 16$6,838 AUD
Retailer 25$7,242 AUD
Retailer 7$7,398 AUD
Retailer 27$7,561 AUD
Retailer 20$7,747 AUD
Retailer 26$7,831 AUD
Retailer 8$7,914 AUD
Retailer 14$7,945 AUD
Retailer 18$8,020 AUD
Retailer 23$8,484 AUD
Retailer 5$8,851 AUD
Retailer 13$8,894 AUD
Retailer 2$9,084 AUD
Retailer 15$9,251 AUD
Retailer 10$9,457 AUD
Retailer 11$9,457 AUD
Retailer 4$9,588 AUD
Retailer 9$9,771 AUD
Retailer 21$9,788 AUD
Retailer 24$10,158 AUD
Retailer 6$10,324 AUD
Retailer 19$10,568 AUD
Retailer 22$11,425 AUD
Retailer 3$13,869 AUD
NZ Jewellers$15,662 AUD

5 data points across 27 retailers

19 retailers$7,242 AUD to $15,662 AUD

B+
Cheapest Retailer
-
$7,242 AUD
Retailer 2
-
$7,398 AUD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$7,747 AUD
View
B+
Retailer 4
-
$7,831 AUD
View
Final sale: no returns
B+
Retailer 5
-
$7,914 AUD
View
B+
Retailer 6
-
$8,484 AUD
View
B
Retailer 7
-
$8,851 AUD
View
B+
Retailer 8
-
$8,894 AUD
View
B+
Retailer 9
-
$9,084 AUD
View
B
Retailer 10
-
$9,457 AUD
View
B
Retailer 11
-
$9,457 AUD
View
B
Retailer 12
-
$9,588 AUD
View
B
Retailer 13
-
$9,771 AUD
View
B
Retailer 14
-
$9,788 AUD
View
Retailer 15
-
$9,788 AUD
View
Price last confirmed 16 days ago
Retailer 16
-
$10,324 AUD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$11,425 AUD
View
Retailer 18
-
$13,869 AUD
View
Price last confirmed 16 days ago
Most Expensive
B
NZ Jewellers
37fadd84-ff04-4ea0-ab27-69096abcf447 · Nov 5
$15,662 AUD
$10,964 USD
View
18 more retailers have this diamond
Prices start from $7,242 AUDSave up to $8,420 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
$7,242 AUD