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1.16ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2506417383

Certificate GIA 2506417383

Diamond specifications and retailer prices

From €6,120 EUR
SGD 9,240 SGD
As of October 31, 2026
Save €2,052 EUR (25%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €8,172 EUR at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.16ct natural round diamond

This 1.16ct 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 2506417383. Listed at 2 retailers as of October 31, 2026, with prices from €6,120 to €8,172, a €2,052 spread on the same certified stone. Diamond Quarter lists it at €8,172. 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

1.16
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2506417383
Dimensions6.78 × 6.73 × 4.11 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.78 mm6.73 mm1.16 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506417383
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €6,120 EUR|Low: €2,684 EUR|High: €6,159 EUR|Avg: €4,312 EUR|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 13, 2026
Retailer 2€2,684 EUR
Retailer 7€3,685 EUR
Retailer 10€3,734 EUR
Retailer 4€3,976 EUR
Retailer 3€4,067 EUR
Retailer 5€4,314 EUR
Retailer 9€4,314 EUR
Retailer 6€4,816 EUR
Retailer 8€5,388 EUR
Retailer 1€6,120 EUR

4 data points across 10 retailers

2 retailers€6,120 EUR to €8,172 EUR

B
Cheapest Retailer
-
€6,120 EUR
SGD 9,240 SGD
Most Expensive
B
Diamond Quarter
1.16SI1D25836126KG · Oct 31
€8,172 EUR
£7,189 GBP
View
1 more retailer has this diamond
Prices start from €6,120 EURSave up to €2,052 EUR

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.

B
1.16ct Round
€6,120 EUR