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Cushion|Natural|GIA

1.70ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 1543772265

Certificate GIA 1543772265

Diamond specifications and retailer prices

From £3,854 GBP
HK$40,100 HKD
As of October 29, 2026
Save £4,567 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,421 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543772265. Listed at 15 retailers as of October 28, 2026, with prices from £3,854 to £8,421, a £4,567 spread on the same certified stone. Queensmith lists it at £8,421. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1543772265
Dimensions7.97 × 5.93 × 4.02 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle
Top View
7.97 mm5.93 mm1.70 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543772265
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.8%

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: £8,421 GBP|Low: £3,854 GBP|High: £8,478 GBP|Avg: £5,466 GBP|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 10£3,854 GBP
Retailer 5£4,149 GBP
Retailer 4£4,574 GBP
Retailer 12£4,732 GBP
Retailer 9£4,732 GBP
Retailer 6£4,859 GBP
Retailer 2£4,902 GBP
Retailer 3£5,247 GBP
Retailer 11£5,338 GBP
Retailer 8£5,592 GBP
Retailer 7£7,593 GBP
Queensmith£8,421 GBP

24 data points across 12 retailers

15 retailers£3,854 GBP to £8,421 GBP

A
Cheapest Retailer
-
£3,854 GBP
HK$40,100 HKD
A
Retailer 2
-
£4,149 GBP
₹526,240 INR
View
Retailer 3
-
£4,458 GBP
SGD 8,023 SGD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£4,574 GBP
SGD 8,232 SGD
View
A
Retailer 5
-
£4,732 GBP
$6,301 USD
View
Final sale: no returns
A
Retailer 6
-
£4,732 GBP
$6,302 USD
View
A
Retailer 7
-
£4,756 GBP
$6,334 USD
View
A
Retailer 8
-
£4,859 GBP
View
A
Retailer 9
-
£4,902 GBP
View
B+
Retailer 10
-
£5,247 GBP
$6,987 USD
View
B+
Retailer 11
-
£5,305 GBP
A$10,868 AUD
View
B+
Retailer 12
-
£5,338 GBP
$7,109 USD
View
B+
Retailer 13
-
£5,592 GBP
€7,092 EUR
View
B+
Retailer 14
-
£7,593 GBP
View
Most Expensive
B
Queensmith
1543772265 · Oct 28
£8,421 GBP
View
14 more retailers have this diamond
Prices start from £3,854 GBPSave up to £4,567 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 Cushion
£3,854 GBP