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Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5566477482

Certificate GIA 5566477482

Diamond specifications and retailer prices

From £2,864 GBP
HK$29,800 HKD
As of October 29, 2026
Save £3,588 GBP (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £6,453 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566477482. Listed at 19 retailers as of October 29, 2026, with prices from £2,864 to £6,453, a £3,588 spread on the same certified stone. NZ Jewellers lists it at £6,453. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5566477482
Dimensions7.56 × 7.61 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Crystal, Indented Natural, Needle, Natural
Top View
7.56 mm7.61 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5566477482
Side View
Table 59.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 61.9%

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: Oct 29
Current: £6,453 GBP|Low: £3,066 GBP|High: £6,453 GBP|Avg: £4,194 GBP
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
October 30, 2026
Retailer 8£3,087 GBP
Retailer 4£3,383 GBP
Retailer 3£3,428 GBP
Retailer 5£3,561 GBP
Retailer 6£3,826 GBP
Retailer 7£3,858 GBP
Retailer 9£3,858 GBP
Retailer 12£3,858 GBP
Retailer 10£4,347 GBP
Retailer 13£4,452 GBP
Retailer 2£5,007 GBP
Retailer 11£6,153 GBP
NZ Jewellers£6,453 GBP

26 data points across 13 retailers

19 retailers£2,864 GBP to £6,453 GBP

A
Cheapest Retailer
-
£2,864 GBP
HK$29,800 HKD
A
Retailer 2
-
£3,087 GBP
₹391,556 INR
View
A
Retailer 3
-
£3,383 GBP
SGD 6,088 SGD
View
B+
Retailer 4
-
£3,420 GBP
$4,554 USD
View
B+
Retailer 5
-
£3,428 GBP
$4,565 USD
View
B+
Retailer 6
-
£3,517 GBP
$4,684 USD
View
B+
Retailer 7
-
£3,561 GBP
$4,742 USD
View
Final sale: no returns
B+
Retailer 8
-
£3,678 GBP
SGD 6,618 SGD
View
B+
Retailer 9
-
£3,826 GBP
View
B+
Retailer 10
-
£3,830 GBP
$5,100 USD
View
B+
Retailer 11
-
£3,858 GBP
$5,138 USD
View
B+
Retailer 12
-
£3,858 GBP
$5,138 USD
View
B+
Retailer 13
-
£3,858 GBP
$5,138 USD
View
B+
Retailer 14
-
£3,972 GBP
$5,290 USD
View
B+
Retailer 15
-
£4,347 GBP
€5,513 EUR
View
Retailer 16
-
£4,452 GBP
$5,928 USD
View
Price last confirmed 7 days ago
B
Retailer 17
-
£5,007 GBP
View
B
Retailer 18
-
£6,153 GBP
View
Most Expensive
B
NZ Jewellers
29735261-aee0-4d31-a3c8-ddebd49fc9a1 · Oct 30
£6,453 GBP
$8,593 USD
View
18 more retailers have this diamond
Prices start from £2,864 GBPSave up to £3,588 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 Round
£2,864 GBP