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Marquise|Natural|GIA

1.21ct F I1 Marquise Natural Diamond

F/I1 • GIA 1429175870

Certificate GIA 1429175870

Diamond specifications and retailer prices

From $2,893 USD
HK$22,600 HKD
As of November 1, 2026
Save $3,577 USD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,470 USD at NZ Jewellers · As of November 3, 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 F colour (colourless) and I1 clarity (included) and certified by GIA 1429175870. Listed at 10 retailers as of November 1, 2026, with prices from $2,893 to $6,470, a $3,577 spread on the same certified stone. NZ Jewellers lists it at $6,470. 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
Color
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1429175870
Dimensions9.82 × 5.81 × 3.33 mm
L/W Ratio1.69
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Indented Natural
Top View
9.82 mm5.81 mm1.21 ctF / I1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1429175870
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 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: $6,470 USD|Low: $2,867 USD|High: $6,470 USD|Avg: $3,673 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 9$2,893 USD
Retailer 5$2,939 USD
Retailer 11$3,008 USD
Retailer 13$3,110 USD
Retailer 6$3,364 USD
Retailer 10$3,503 USD
Retailer 7$3,810 USD
Retailer 8$3,882 USD
Retailer 3$3,970 USD
Retailer 4$4,100 USD
Retailer 2$4,329 USD
Retailer 12$4,602 USD
NZ Jewellers$6,470 USD

20 data points across 13 retailers

10 retailers$2,893 USD to $6,470 USD

B+
Cheapest Retailer
-
$2,893 USD
HK$22,600 HKD
B+
Retailer 2
-
$3,008 USD
View
B+
Retailer 3
-
$3,364 USD
View
B+
Retailer 4
-
$3,503 USD
View
B
Retailer 5
-
$3,810 USD
View
B
Retailer 6
-
$3,882 USD
View
B
Retailer 7
-
$3,970 USD
View
B
Retailer 8
-
$4,100 USD
View
B
Retailer 9
-
$4,329 USD
€4,123 EUR
View
Most Expensive
C
NZ Jewellers
460b2d06-e372-4bee-ad2f-3484af32fb5b · Nov 3
$6,470 USD
View
9 more retailers have this diamond
Prices start from $2,893 USDSave up to $3,577 USD

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
$2,893 USD