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Marquise|Natural|GIA

1.21ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 3545928354

Certificate GIA 3545928354

Diamond specifications and retailer prices

From $7,699 AUD
As of November 5, 2026
Save $2,354 AUD (23%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,053 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 F 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 3545928354. Listed at 10 retailers as of November 5, 2026, with prices from $7,699 to $10,053, a $2,354 spread on the same certified stone. Cape Diamonds lists it at $10,053. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37.86°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 3545928354
Dimensions10.48 × 5.53 × 3.61 mm
L/W Ratio1.90
Top View
10.48 mm5.53 mm1.21 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3545928354
Side View
Table 60.0%Crown 37.86°Girdle: MED-VTKPavilion 41.5°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $10,053 AUD|Low: $6,415 AUD|High: $11,358 AUD|Avg: $8,267 AUD
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
November 5, 2026
Retailer 7$6,415 AUD
Retailer 6$6,644 AUD
Retailer 5$6,816 AUD
Retailer 16$7,185 AUD
Retailer 4$7,303 AUD
Retailer 17$7,699 AUD
Retailer 2$7,987 AUD
Retailer 14$8,130 AUD
Retailer 10$8,175 AUD
Retailer 13$8,239 AUD
Retailer 15$8,246 AUD
Retailer 11$9,309 AUD
Retailer 9$9,447 AUD
Retailer 12$9,507 AUD
Retailer 3$10,034 AUD
Cape Diamonds$10,053 AUD
Retailer 8$11,358 AUD

18 data points across 17 retailers

10 retailers$7,699 AUD to $10,053 AUD

Retailer 1
-
$7,185 AUD
Price last confirmed 11 days ago
B
Retailer 2
-
$7,699 AUD
View
B
Retailer 3
-
$7,987 AUD
View
Retailer 4
-
$8,130 AUD
View
Price last confirmed 44 days ago
B
Retailer 5
-
$8,175 AUD
View
B
Retailer 6
-
$8,239 AUD
View
B
Retailer 7
-
$8,246 AUD
View
Retailer 8
-
$9,309 AUD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$9,507 AUD
View
Most Expensive
B
Cape Diamonds
cert_3545928354 · Nov 5
$10,053 AUD
ZAR 111,588 ZAR
View
9 more retailers have this diamond
Prices start from $7,699 AUDSave up to $2,354 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
$7,699 AUD