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Radiant|Natural|GIA

1.70ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6555036797

Certificate GIA 6555036797

Diamond specifications and retailer prices

From £8,114 GBP
A$16,726 AUD
As of October 31, 2026
Save £1,837 GBP (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £9,951 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555036797. Listed at 3 retailers as of October 31, 2026, with prices from £8,114 to £9,951, a £1,837 spread on the same certified stone. 77 Diamonds lists it at £9,951. 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

1.70
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6555036797
Dimensions8.59 × 5.88 × 3.87 mm
L/W Ratio1.46
Top View
8.59 mm5.88 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6555036797
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 65.8%

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: £9,951 GBP|Low: £5,673 GBP|High: £10,100 GBP|Avg: £7,455 GBP|+1.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 3£5,673 GBP
Retailer 8£6,429 GBP
Retailer 6£6,807 GBP
Retailer 7£7,083 GBP
Retailer 9£7,434 GBP
Retailer 4£7,604 GBP
Retailer 5£7,872 GBP
Retailer 2£8,190 GBP
77 Diamonds£9,951 GBP

36 data points across 9 retailers

3 retailers£8,114 GBP to £9,951 GBP

B
Cheapest Retailer
-
£8,114 GBP
A$16,726 AUD
B
Retailer 2
-
£8,190 GBP
CA$15,242 CAD
View
Most Expensive
B
77 Diamonds
RADMBVAM2Y3CV · Oct 31
£9,951 GBP
View
2 more retailers have this diamond
Prices start from £8,114 GBPSave up to £1,837 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
1.70ct Radiant
£8,114 GBP