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Marquise|Natural|GIA

1.21ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 6237767411

Certificate GIA 6237767411

Diamond specifications and retailer prices

From $9,317 AUD
As of November 5, 2026
Save $1,832 AUD (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $11,149 AUD at 77 Diamonds · As of November 7, 2026
View at 77 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 6237767411. Listed at 3 retailers as of November 5, 2026, with prices from $9,317 to $11,149, a $1,832 spread on the same certified stone. 77 Diamonds lists it at $11,149. 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
FluorescenceNone
Crown angle40.19°
Pavilion angle41.5°
OriginNatural
Grading LabGIA
CertificateGIA 6237767411
Dimensions10.33 × 5.57 × 3.61 mm
L/W Ratio1.85
Top View
10.33 mm5.57 mm1.21 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6237767411
Side View
Table 62.0%Crown 40.19°Girdle: THN-THKPavilion 41.5°Culet: NoneDepth 64.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,149 AUD|Low: $9,317 AUD|High: $11,333 AUD|Avg: $10,128 AUD|+0.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 3$9,317 AUD
Retailer 2$9,616 AUD
Retailer 4$9,853 AUD
77 Diamonds$11,149 AUD

32 data points across 4 retailers

3 retailers$9,317 AUD to $11,149 AUD

B
Cheapest Retailer
-
$9,317 AUD
B
Retailer 2
-
$9,616 AUD
View
Most Expensive
B
77 Diamonds
MQMBJXB5WAKR · Nov 7
$11,149 AUD
£6,032 GBP
View
2 more retailers have this diamond
Prices start from $9,317 AUDSave up to $1,832 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
$9,317 AUD