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1.15ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1505352378

Certificate GIA 1505352378

Diamond specifications and retailer prices

From $10,512 SGD
£6,474 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: $10,512 SGD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 1.15ct natural round diamond

This 1.15ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1505352378. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.15
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1505352378
Dimensions6.64 × 6.69 × 4.18 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.64 mm6.69 mm1.15 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1505352378
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°CuletDepth 62.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $10,512 SGD|Low: $10,512 SGD|High: $10,512 SGD|Avg: $10,512 SGD
September 27, 2026
Diamond Quarter$10,512 SGD

1 data point across 1 retailer

1 retailer

B
Diamond Quarter
1.15SI1D1578E992N · Oct 31
$10,512 SGD
£6,474 GBP
View

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B
1.15ct Round
$10,512 SGD