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Round|Natural|GIA

1.70ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 7518843148

Certificate GIA 7518843148

Diamond specifications and retailer prices

From £2,448 GBP
As of November 6, 2026
Save £2,477 GBP (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,925 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 7518843148. Listed at 10 retailers as of November 6, 2026, with prices from £2,448 to £4,925, a £2,477 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,925. 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°
OriginNatural
Grading LabGIA
CertificateGIA 7518843148
Dimensions7.58 × 7.54 × 4.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.58 mm7.54 mm1.70 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518843148
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 6
Current: £3,554 GBP|Low: £2,419 GBP|High: £4,925 GBP|Avg: £3,345 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
November 6, 2026
Retailer 7£2,448 GBP
Retailer 10£2,518 GBP
Retailer 2£2,684 GBP
Retailer 9£2,730 GBP
Retailer 5£2,824 GBP
Retailer 6£2,876 GBP
Retailer 8£2,932 GBP
Retailer 1£3,554 GBP
Retailer 11£3,605 GBP
Retailer 4£3,982 GBP
Retailer 3£4,656 GBP
Wholesale Diamonds Direct£4,925 GBP

42 data points across 12 retailers

10 retailers£2,448 GBP to £4,925 GBP

A
Cheapest Retailer
-
£2,448 GBP
Retailer 2
-
£2,518 GBP
View
Price last confirmed 17 days ago
B+
Retailer 3
-
£2,684 GBP
View
B+
Retailer 4
-
£2,730 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,824 GBP
View
B+
Retailer 6
-
£2,876 GBP
View
B+
Retailer 7
-
£2,932 GBP
View
B
Retailer 8
-
£3,554 GBP
View
B
Retailer 9
-
£3,982 GBP
View
Most Expensive
C
Wholesale Diamonds Direct
425853586 · Nov 6
£4,925 GBP
$6,592 USD
View
9 more retailers have this diamond
Prices start from £2,448 GBPSave up to £2,477 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
£2,448 GBP