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Round|Natural|GIA

1.28ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2247034235

Certificate GIA 2247034235

Diamond specifications and retailer prices

From $4,545 SGD
As of November 5, 2026
Save $1,930 SGD (30%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,772 SGD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2247034235. Listed at 20 retailers as of November 5, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.28
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2247034235
Dimensions6.92 × 6.88 × 4.35 mm
L/W Ratio1.01
Top View
6.92 mm6.88 mm1.28 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2247034235
Side View
Table 57.0%CrownGirdle: Sli. ThickPavilionCulet: NoneDepth 63.2%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $6,475 SGD|Low: $4,341 SGD|High: $9,966 SGD|Avg: $5,991 SGD|+10.5%
Retailer 1
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 6, 2026
Retailer 9$4,545 SGD
Retailer 16$4,739 SGD
Retailer 11$4,793 SGD
Retailer 7$4,928 SGD
Retailer 15$5,164 SGD
Retailer 5$5,312 SGD
Retailer 6$5,570 SGD
Retailer 13$5,736 SGD
Retailer 8$5,934 SGD
Retailer 12$5,934 SGD
Retailer 17$6,139 SGD
Retailer 2$6,264 SGD
Retailer 10$6,354 SGD
Retailer 1$6,475 SGD
Retailer 4$6,826 SGD
Retailer 3$7,455 SGD
Retailer 14$9,939 SGD

39 data points across 17 retailers

20 retailers$4,545 SGD to $6,475 SGD

A
Cheapest Retailer
-
$4,545 SGD
B+
Retailer 2
-
$4,793 SGD
View
B+
Retailer 3
-
$4,819 SGD
View
B+
Retailer 4
-
$5,011 SGD
View
B+
Retailer 5
-
$5,164 SGD
View
Retailer 6
-
$5,602 SGD
View
Price last confirmed 29 days ago
Retailer 7
-
$5,602 SGD
View
Price last confirmed 29 days ago
Retailer 8
-
$5,602 SGD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$5,736 SGD
View
B
Retailer 10
-
$5,934 SGD
View
B
Retailer 11
-
$5,934 SGD
View
B
Retailer 12
-
$6,139 SGD
View
Retailer 13
-
$6,264 SGD
View
Price last confirmed 33 days ago
B
Retailer 14
-
$6,354 SGD
View
Retailer 15
-
$6,463 SGD
View
Price last confirmed 38 days ago
B+
Retailer 16
-
$6,475 SGD
View
Retailer 17
-
$6,826 SGD
View
Price last confirmed 29 days ago
Retailer 18
-
$7,455 SGD
View
Price last confirmed 37 days ago
Retailer 19
-
$9,939 SGD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
55f578f1-354a-4ea5-8be4-20ec29b3a72f · Sep 27
$10,772 SGD
$8,405 USD
View
Price last confirmed 40 days ago
19 more retailers have this diamond
Prices start from $4,545 SGDSave up to $1,930 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
$4,545 SGD