CaratHunter
Plans
Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 1549827419

Certificate GIA 1549827419

Diamond specifications and retailer prices

From $8,174 AUD
As of November 6, 2026
Save $4,448 AUD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,621 AUD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1549827419. Listed at 11 retailers as of November 5, 2026, with prices from $8,174 to $12,621, a $4,448 spread on the same certified stone. Cape Diamonds lists it at $12,621. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.78°
Pavilion angle41.63°
OriginNatural
Grading LabGIA
CertificateGIA 1549827419
Dimensions10.17 × 5.46 × 3.53 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.17 mm5.46 mm1.21 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549827419
Side View
Table 61.0%Crown 39.78°Girdle: THN-VTKPavilion 41.63°Culet: NoneDepth 64.7%

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 6
Current: $12,621 AUD|Low: $5,289 AUD|High: $12,790 AUD|Avg: $9,408 AUD|+20.8%
Cape Diamonds
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 12$5,289 AUD
Retailer 11$7,214 AUD
Retailer 7$7,671 AUD
Retailer 2$8,174 AUD
Retailer 15$8,711 AUD
Retailer 5$8,722 AUD
Retailer 6$8,762 AUD
Retailer 9$9,061 AUD
Retailer 18$9,197 AUD
Retailer 4$9,229 AUD
Retailer 3$9,371 AUD
Retailer 14$9,822 AUD
Retailer 19$9,853 AUD
Retailer 16$10,421 AUD
Retailer 17$10,421 AUD
Retailer 13$10,770 AUD
Retailer 20$10,948 AUD
Retailer 10$11,853 AUD
Cape Diamonds$12,621 AUD
Retailer 8$12,790 AUD

3 data points across 20 retailers

11 retailers$8,174 AUD to $12,621 AUD

B+
Cheapest Retailer
-
$8,174 AUD
B+
Retailer 2
-
$8,711 AUD
View
B
Retailer 3
-
$9,197 AUD
View
B
Retailer 4
-
$9,229 AUD
View
B
Retailer 5
-
$9,822 AUD
View
B
Retailer 6
-
$9,853 AUD
View
B
Retailer 7
-
$10,421 AUD
View
B
Retailer 8
-
$10,421 AUD
View
B
Retailer 9
-
$10,770 AUD
View
B
Retailer 10
-
$10,948 AUD
View
Most Expensive
B
Cape Diamonds
cert_1549827419 · Nov 5
$12,621 AUD
ZAR 140,096 ZAR
View
10 more retailers have this diamond
Prices start from $8,174 AUDSave up to $4,448 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
$8,174 AUD