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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6552006019

Certificate GIA 6552006019

Diamond specifications and retailer prices

From £2,394 GBP
As of November 6, 2026
Save £3,151 GBP (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,545 GBP at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552006019. Listed at 11 retailers as of November 5, 2026, with prices from £2,394 to £5,545, a £3,151 spread on the same certified stone. NZ Jewellers lists it at £5,545. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6552006019
Dimensions7.48 × 7.60 × 4.74 mm
L/W Ratio1.02
Top View
7.48 mm7.60 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552006019
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.3%

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 6
Current: £5,545 GBP|Low: £2,394 GBP|High: £5,580 GBP|Avg: £3,342 GBP|-0.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£2,394 GBP
Retailer 4£2,464 GBP
Retailer 7£2,800 GBP
Retailer 10£3,022 GBP
Retailer 9£3,183 GBP
Retailer 11£3,183 GBP
Retailer 12£3,183 GBP
Retailer 3£3,293 GBP
Retailer 5£3,377 GBP
Retailer 8£3,673 GBP
Retailer 6£3,885 GBP
NZ Jewellers£5,545 GBP

44 data points across 12 retailers

11 retailers£2,394 GBP to £5,545 GBP

A
Cheapest Retailer
-
£2,394 GBP
B+
Retailer 2
-
£2,800 GBP
View
B
Retailer 3
-
£3,022 GBP
View
Retailer 4
-
£3,183 GBP
View
Price last confirmed 9 days ago
B
Retailer 5
-
£3,183 GBP
View
B
Retailer 6
-
£3,183 GBP
View
B
Retailer 7
-
£3,293 GBP
View
B+
Retailer 8
-
£3,377 GBP
View
B
Retailer 9
-
£3,673 GBP
View
B
Retailer 10
-
£3,885 GBP
View
Most Expensive
C
NZ Jewellers
9c744563-1f8c-4e6f-a284-7cb112f245a8 · Nov 5
£5,545 GBP
$7,422 USD
View
10 more retailers have this diamond
Prices start from £2,394 GBPSave up to £3,151 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
£2,394 GBP