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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 £5,103 GBP
SGD 9,240 SGD
As of October 29, 2026
Save £1,711 GBP (25%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £6,814 GBP at Diamond Quarter · As of October 29, 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 29, 2026, with prices from £5,103 to £6,814, a £1,711 spread on the same certified stone. Diamond Quarter lists it at £6,814. 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
Colour
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 29
Current: £5,103 GBP|Low: £2,238 GBP|High: £5,136 GBP|Avg: £3,596 GBP|-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£2,238 GBP
Retailer 7£3,073 GBP
Retailer 10£3,114 GBP
Retailer 4£3,315 GBP
Retailer 3£3,391 GBP
Retailer 5£3,597 GBP
Retailer 9£3,597 GBP
Retailer 6£4,015 GBP
Retailer 8£4,493 GBP
Retailer 1£5,103 GBP

4 data points across 10 retailers

2 retailers£5,103 GBP to £6,814 GBP

B
Cheapest Retailer
-
£5,103 GBP
SGD 9,240 SGD
Most Expensive
B
Diamond Quarter
1.16SI1D25836126KG · Oct 29
£6,814 GBP
View
1 more retailer has this diamond
Prices start from £5,103 GBPSave up to £1,711 GBP

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
£5,103 GBP