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Round|Natural|GIA

1.28ct F I1 Round Natural Diamond

EX • F/I1 • GIA 5393502700

Certificate GIA 5393502700

Diamond specifications and retailer prices

From $2,663 SGD
$2,082 USD
As of November 1, 2026
Save $1,382 SGD (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $4,045 SGD at Yorxs · As of November 1, 2026
View at Yorxs

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5393502700. Listed at 3 retailers as of November 1, 2026, with prices from $2,663 to $4,045, a $1,382 spread on the same certified stone. Yorxs lists it at $4,045. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5393502700
Dimensions6.94 × 6.90 × 4.29 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.94 mm6.90 mm1.28 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5393502700
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,759 SGD|Low: $2,482 SGD|High: $4,062 SGD|Avg: $3,064 SGD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 1, 2026
Retailer 5$2,482 SGD
Retailer 6$2,605 SGD
Retailer 4$2,663 SGD
Retailer 1$2,759 SGD
Retailer 3$3,044 SGD
Retailer 2$3,871 SGD
Yorxs$4,045 SGD

17 data points across 7 retailers

3 retailers$2,663 SGD to $4,045 SGD

A
Cheapest Retailer
-
$2,663 SGD
$2,082 USD
B+
Retailer 2
-
$3,044 SGD
$2,380 USD
View
Most Expensive
B+
Yorxs
AB9900B93 · Nov 1
$4,045 SGD
€3,012 EUR
View
2 more retailers have this diamond
Prices start from $2,663 SGDSave up to $1,382 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.

A
1.28ct Round
$2,663 SGD