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1.27ct D SI2 Round Natural Diamond

EX • D/SI2 • IGI 635475226

Shape and cutting style on the report: Round brilliant

Certificate IGI 635475226

Diamond specifications and retailer prices

From $3,464 SGD
As of November 6, 2026
Save $4,389 SGD (56%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,853 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.27ct natural round diamond

This 1.27ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 635475226. Listed at 6 retailers as of November 5, 2026, with prices from $3,464 to $7,853, a $4,389 spread on the same certified stone. NZ Jewellers lists it at $7,853. 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

1.27
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 635475226
Dimensions6.89 × 6.85 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.89 mm6.85 mm1.27 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 635475226
Side View
Table 55.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 63.2%

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 6
Current: $7,853 SGD|Low: $3,464 SGD|High: $7,853 SGD|Avg: $4,501 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 15, 2026
Retailer 3$3,464 SGD
Retailer 4$3,757 SGD
Retailer 6$3,819 SGD
Retailer 2$3,901 SGD
Retailer 5$4,334 SGD
NZ Jewellers$7,853 SGD

3 data points across 6 retailers

6 retailers$3,464 SGD to $7,853 SGD

A
Cheapest Retailer
-
$3,464 SGD
A
Retailer 2
-
$3,757 SGD
View
A
Retailer 3
-
$3,819 SGD
View
A
Retailer 4
-
$3,901 SGD
View
A
Retailer 5
-
$4,334 SGD
View
Most Expensive
B
NZ Jewellers
010ce570-ccc6-44dd-a616-9dbe537fd914 · Nov 5
$7,853 SGD
$6,148 USD
View
5 more retailers have this diamond
Prices start from $3,464 SGDSave up to $4,389 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
1.27ct Round
$3,464 SGD