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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 $3,706 SGD
HK$22,600 HKD
As of November 1, 2026
Save $4,583 SGD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,289 SGD 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 $3,706 to $8,289, a $4,583 spread on the same certified stone. NZ Jewellers lists it at $8,289. 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
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: $8,289 SGD|Low: $3,673 SGD|High: $8,289 SGD|Avg: $4,706 SGD
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$3,706 SGD
Retailer 5$3,766 SGD
Retailer 11$3,854 SGD
Retailer 13$3,985 SGD
Retailer 6$4,310 SGD
Retailer 10$4,488 SGD
Retailer 7$4,881 SGD
Retailer 8$4,974 SGD
Retailer 3$5,086 SGD
Retailer 4$5,253 SGD
Retailer 2$5,547 SGD
Retailer 12$5,896 SGD
NZ Jewellers$8,289 SGD

20 data points across 13 retailers

10 retailers$3,706 SGD to $8,289 SGD

B+
Cheapest Retailer
-
$3,706 SGD
HK$22,600 HKD
B+
Retailer 2
-
$3,854 SGD
$3,008 USD
View
B+
Retailer 3
-
$4,310 SGD
$3,364 USD
View
B+
Retailer 4
-
$4,488 SGD
$3,503 USD
View
B
Retailer 5
-
$4,881 SGD
$3,810 USD
View
B
Retailer 6
-
$4,974 SGD
$3,882 USD
View
B
Retailer 7
-
$5,086 SGD
$3,970 USD
View
B
Retailer 8
-
$5,253 SGD
$4,100 USD
View
B
Retailer 9
-
$5,547 SGD
€4,123 EUR
View
Most Expensive
C
NZ Jewellers
460b2d06-e372-4bee-ad2f-3484af32fb5b · Nov 3
$8,289 SGD
$6,470 USD
View
9 more retailers have this diamond
Prices start from $3,706 SGDSave up to $4,583 SGD

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
$3,706 SGD