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1.25ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 670479480

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479480

Diamond specifications and retailer prices

From $2,870 SGD
$2,245 USD
As of October 30, 2026
Save $3,771 SGD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,641 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479480. Listed at 11 retailers as of October 30, 2026, with prices from $2,870 to $6,641, a $3,771 spread on the same certified stone. NZ Jewellers lists it at $6,641. 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

1.25
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 670479480
Dimensions6.90 × 6.95 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.90 mm6.95 mm1.25 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479480
Side View
Table 61.0%Crown 32°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 60.6%

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: Oct 30
Current: $6,641 SGD|Low: $1,978 SGD|High: $6,641 SGD|Avg: $3,577 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
Retailer 14
October 30, 2026
Retailer 6$1,978 SGD
Retailer 5$2,870 SGD
Retailer 9$2,933 SGD
Retailer 7$2,951 SGD
Retailer 14$3,022 SGD
Retailer 11$3,177 SGD
Retailer 13$3,177 SGD
Retailer 10$3,324 SGD
Retailer 4$3,356 SGD
Retailer 12$3,665 SGD
Retailer 2$3,724 SGD
Retailer 3$3,780 SGD
Retailer 8$5,441 SGD
NZ Jewellers$6,641 SGD

34 data points across 14 retailers

11 retailers$2,870 SGD to $6,641 SGD

A
Cheapest Retailer
-
$2,870 SGD
$2,245 USD
A
Retailer 2
-
$2,933 SGD
$2,294 USD
View
Final sale: no returns
A
Retailer 3
-
$2,951 SGD
£1,818 GBP
View
A
Retailer 4
-
$3,177 SGD
$2,485 USD
View
A
Retailer 5
-
$3,177 SGD
$2,485 USD
View
A
Retailer 6
-
$3,324 SGD
$2,600 USD
View
A
Retailer 7
-
$3,356 SGD
$2,625 USD
View
A
Retailer 8
-
$3,665 SGD
$2,867 USD
View
A
Retailer 9
-
$3,724 SGD
€2,774 EUR
View
B+
Retailer 10
-
$5,441 SGD
£3,351 GBP
View
Most Expensive
B
NZ Jewellers
847bf1c9-4f0d-461b-afc1-baf01741f4bf · Oct 30
$6,641 SGD
$5,195 USD
View
10 more retailers have this diamond
Prices start from $2,870 SGDSave up to $3,771 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
1.25ct Round
$2,870 SGD