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Cushion|Natural|GIA

1.70ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5232938477

Certificate GIA 5232938477

Diamond specifications and retailer prices

From £3,117 GBP
As of November 6, 2026
Save £3,510 GBP (53%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,627 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5232938477. Listed at 11 retailers as of November 2, 2026, with prices from £3,117 to £6,627, a £3,510 spread on the same certified stone. MOH London lists it at £6,627. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5232938477
Dimensions8.90 × 5.69 × 3.86 mm
L/W Ratio1.56
Top View
8.90 mm5.69 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232938477
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £6,627 GBP|Low: £3,117 GBP|High: £6,805 GBP|Avg: £4,430 GBP|-2.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£3,117 GBP
Retailer 2£3,290 GBP
Retailer 3£4,019 GBP
Retailer 9£4,197 GBP
Retailer 7£4,275 GBP
Retailer 5£4,371 GBP
Retailer 4£4,688 GBP
Retailer 8£5,158 GBP
MOH London£6,627 GBP

35 data points across 9 retailers

11 retailers£3,117 GBP to £6,627 GBP

B+
Cheapest Retailer
-
£3,117 GBP
B+
Retailer 2
-
£3,290 GBP
View
B
Retailer 3
-
£3,861 GBP
View
B+
Retailer 4
-
£4,019 GBP
View
B
Retailer 5
-
£4,083 GBP
View
Retailer 6
-
£4,197 GBP
View
Price last confirmed 22 days ago
B
Retailer 7
-
£4,275 GBP
View
B
Retailer 8
-
£4,371 GBP
View
B
Retailer 9
-
£4,688 GBP
View
B
Retailer 10
-
£5,158 GBP
View
Most Expensive
B
MOH London
7B1DCEC43 · Nov 2
£6,627 GBP
View
10 more retailers have this diamond
Prices start from £3,117 GBPSave up to £3,510 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+
1.70ct Cushion
£3,117 GBP