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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 $6,780 SGD
As of November 5, 2026
Save $2,073 SGD (23%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,852 SGD 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 $6,780 to $8,852, a $2,073 spread on the same certified stone. Cape Diamonds lists it at $8,852. 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: $8,852 SGD|Low: $5,649 SGD|High: $10,002 SGD|Avg: $7,280 SGD
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$5,649 SGD
Retailer 6$5,851 SGD
Retailer 5$6,002 SGD
Retailer 16$6,327 SGD
Retailer 4$6,431 SGD
Retailer 17$6,780 SGD
Retailer 2$7,033 SGD
Retailer 14$7,159 SGD
Retailer 10$7,199 SGD
Retailer 13$7,255 SGD
Retailer 15$7,262 SGD
Retailer 11$8,197 SGD
Retailer 9$8,319 SGD
Retailer 12$8,371 SGD
Retailer 3$8,835 SGD
Cape Diamonds$8,852 SGD
Retailer 8$10,002 SGD

18 data points across 17 retailers

10 retailers$6,780 SGD to $8,852 SGD

Retailer 1
-
$6,327 SGD
Price last confirmed 11 days ago
B
Retailer 2
-
$6,780 SGD
View
B
Retailer 3
-
$7,033 SGD
View
Retailer 4
-
$7,159 SGD
View
Price last confirmed 44 days ago
B
Retailer 5
-
$7,199 SGD
View
B
Retailer 6
-
$7,255 SGD
View
B
Retailer 7
-
$7,262 SGD
View
Retailer 8
-
$8,197 SGD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$8,371 SGD
View
Most Expensive
B
Cape Diamonds
cert_3545928354 · Nov 5
$8,852 SGD
ZAR 111,588 ZAR
View
9 more retailers have this diamond
Prices start from $6,780 SGDSave up to $2,073 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
$6,780 SGD