Radiant|Natural|GIA

1.71ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2516933916

Certificate GIA 2516933916

Diamond specifications and retailer prices

From £7,192 GBP
CA$13,384 CAD
As of October 30, 2026
Save £5,237 GBP (42%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £12,429 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2516933916. Listed at 16 retailers as of October 30, 2026, with prices from £7,192 to £12,429, a £5,237 spread on the same certified stone. NZ Jewellers lists it at £12,429. 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

1.71
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle30.56°
OriginNatural
Grading LabGIA
CertificateGIA 2516933916
Dimensions7.70 × 5.94 × 4.03 mm
L/W Ratio1.30
Top View
7.70 mm5.94 mm1.71 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516933916
Side View
Table 65.0%Crown 44.6°Girdle: STK-THKPavilion 30.56°Culet: NoneDepth 67.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £12,429 GBP|Low: £7,192 GBP|High: £13,902 GBP|Avg: £9,439 GBP|-10.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 9£7,192 GBP
Retailer 5£7,278 GBP
Retailer 7£8,094 GBP
Retailer 10£8,133 GBP
Retailer 6£8,361 GBP
Retailer 13£8,394 GBP
Retailer 8£8,694 GBP
Retailer 4£8,822 GBP
Retailer 14£8,822 GBP
Retailer 2£9,025 GBP
Retailer 3£9,120 GBP
Retailer 12£9,167 GBP
Retailer 11£11,662 GBP
NZ Jewellers£12,429 GBP

39 data points across 14 retailers

16 retailers£7,192 GBP to £12,429 GBP

Retailer 1
-
£7,192 GBP
CA$13,384 CAD
Price last confirmed 9 days ago
B+
Retailer 2
-
£7,192 GBP
CA$13,384 CAD
View
B+
Retailer 3
-
£7,278 GBP
$9,752 USD
View
B+
Retailer 4
-
£8,094 GBP
$10,845 USD
View
B+
Retailer 5
-
£8,133 GBP
View
Retailer 6
-
£8,361 GBP
$11,203 USD
View
Price last confirmed 8 days ago
Retailer 7
-
£8,394 GBP
$11,247 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
£8,694 GBP
$11,649 USD
View
B+
Retailer 9
-
£8,822 GBP
$11,820 USD
View
B+
Retailer 10
-
£8,822 GBP
$11,820 USD
View
B+
Retailer 11
-
£9,025 GBP
€11,517 EUR
View
B+
Retailer 12
-
£9,120 GBP
$12,220 USD
View
Retailer 13
-
£9,167 GBP
$12,283 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
£11,662 GBP
View
Retailer 15
-
£12,429 GBP
$16,654 USD
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
8a3d82ec-ec0e-4bb2-845f-327448d368dc · Oct 30
£12,429 GBP
$16,654 USD
View
15 more retailers have this diamond
Prices start from £7,192 GBPSave up to £5,237 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
£7,192 GBP