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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1568416858

Certificate GIA 1568416858

Diamond specifications and retailer prices

From £4,734 GBP
As of November 5, 2026
Save £6,303 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £11,038 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1568416858. Listed at 22 retailers as of November 5, 2026, with prices from £4,734 to £11,038, a £6,303 spread on the same certified stone. NZ Jewellers lists it at £11,038. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568416858
Dimensions8.10 × 5.92 × 4.01 mm
L/W Ratio1.37
Girdle conditionPolished
Top View
8.10 mm5.92 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568416858
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £11,038 GBP|Low: £4,696 GBP|High: £11,083 GBP|Avg: £6,097 GBP|-0.4%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 6£4,734 GBP
Retailer 3£4,829 GBP
Retailer 14£4,838 GBP
Retailer 19£5,074 GBP
Retailer 10£5,092 GBP
Retailer 2£5,163 GBP
Retailer 20£5,259 GBP
Retailer 8£5,336 GBP
Retailer 11£5,510 GBP
Retailer 5£5,518 GBP
Retailer 21£5,566 GBP
Retailer 4£5,642 GBP
Retailer 13£5,715 GBP
Retailer 16£6,223 GBP
Retailer 12£6,282 GBP
Retailer 7£6,328 GBP
Retailer 9£6,823 GBP
Retailer 18£6,975 GBP
Retailer 15£8,051 GBP
Retailer 17£9,172 GBP
NZ Jewellers£11,038 GBP

17 data points across 21 retailers

22 retailers£4,734 GBP to £11,038 GBP

A
Cheapest Retailer
-
£4,734 GBP
B+
Retailer 2
-
£4,829 GBP
View
Retailer 3
-
£4,838 GBP
View
Price last confirmed 17 days ago
B+
Retailer 4
-
£5,074 GBP
View
B+
Retailer 5
-
£5,092 GBP
View
B+
Retailer 6
-
£5,163 GBP
View
B+
Retailer 7
-
£5,259 GBP
View
B+
Retailer 8
-
£5,336 GBP
View
Retailer 9
-
£5,361 GBP
View
Price last confirmed 27 days ago
B+
Retailer 10
-
£5,510 GBP
View
B+
Retailer 11
-
£5,518 GBP
View
Final sale: no returns
B+
Retailer 12
-
£5,566 GBP
View
B+
Retailer 13
-
£5,642 GBP
View
B+
Retailer 14
-
£5,715 GBP
View
B+
Retailer 15
-
£6,223 GBP
View
Retailer 16
-
£6,282 GBP
View
Price last confirmed 15 days ago
B
Retailer 17
-
£6,328 GBP
View
B+
Retailer 18
-
£6,823 GBP
View
B
Retailer 19
-
£6,975 GBP
View
B
Retailer 20
-
£8,051 GBP
View
B
Retailer 21
-
£9,172 GBP
View
Most Expensive
B
NZ Jewellers
698f19e5-414c-4929-baa6-81cbfbda613b · Nov 5
£11,038 GBP
$14,774 USD
View
21 more retailers have this diamond
Prices start from £4,734 GBPSave up to £6,303 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.

A
1.70ct Radiant
£4,734 GBP