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Radiant|Natural|GIA

1.71ct D SI1 Radiant Natural Diamond

VG • D/SI1

Diamond specifications and retailer prices

From £9,185 GBP
CA$17,093 CAD
As of October 30, 2026
Save £4,373 GBP (32%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £13,558 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.71ct natural radiant diamond

This 1.71ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 9 retailers as of October 30, 2026, with prices from £9,185 to £13,558, a £4,373 spread on the same certified stone. NZ Jewellers lists it at £13,558. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.77 × 6.71 × 4.48 mm
L/W Ratio1.01
Top View
6.77 mm6.71 mm1.71 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: MediumPavilionCuletDepth 66.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £13,558 GBP|Low: £9,185 GBP|High: £13,558 GBP|Avg: £10,618 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 30, 2026
Retailer 6£9,185 GBP
Retailer 3£9,570 GBP
Retailer 2£10,208 GBP
Retailer 5£10,368 GBP
Retailer 7£10,605 GBP
Retailer 4£10,767 GBP
Retailer 8£11,390 GBP
NZ Jewellers£13,558 GBP

3 data points across 8 retailers

9 retailers£9,185 GBP to £13,558 GBP

B
Cheapest Retailer
-
£9,185 GBP
CA$17,093 CAD
B
Retailer 2
-
£9,570 GBP
$12,823 USD
View
B
Retailer 3
-
£10,208 GBP
$13,678 USD
View
B
Retailer 4
-
£10,368 GBP
$13,892 USD
View
B
Retailer 5
-
£10,605 GBP
$14,209 USD
View
Retailer 6
-
£10,767 GBP
$14,426 USD
View
Price last confirmed 55 days ago
B
Retailer 7
-
£10,767 GBP
$14,426 USD
View
B
Retailer 8
-
£11,390 GBP
$15,261 USD
View
Most Expensive
C
NZ Jewellers
f0080fb6-c8b6-49c4-98b1-ab1809aada6d · Oct 30
£13,558 GBP
$18,166 USD
View
8 more retailers have this diamond
Prices start from £9,185 GBPSave up to £4,373 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
1.71ct Radiant
£9,185 GBP