Cushion|Natural|GIA

1.70ct J I1 Cushion Natural Diamond

VG • J/I1 • GIA 6391576750

Certificate GIA 6391576750

Diamond specifications and retailer prices

From £2,590 GBP
$3,470 USD
As of October 28, 2026
Save £1,158 GBP (31%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,748 GBP at Yorxs · As of October 31, 2026
View at Yorxs

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6391576750. Listed at 8 retailers as of October 28, 2026, with prices from £2,590 to £3,748, a £1,158 spread on the same certified stone. Yorxs lists it at £3,748. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
J
Colour
I1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6391576750
Dimensions6.80 × 6.40 × 4.61 mm
L/W Ratio1.06
Top View
6.80 mm6.40 mm1.70 ctJ / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6391576750
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 72.1%

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: Oct 28
Current: £3,000 GBP|Low: £2,590 GBP|High: £3,941 GBP|Avg: £3,177 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Yorxs
October 31, 2026
Retailer 2£2,590 GBP
Retailer 8£2,641 GBP
Retailer 3£2,668 GBP
Retailer 5£2,945 GBP
Retailer 1£3,000 GBP
Retailer 7£3,381 GBP
Retailer 9£3,381 GBP
Retailer 6£3,493 GBP
Yorxs£3,748 GBP
Retailer 4£3,941 GBP

20 data points across 10 retailers

8 retailers£2,590 GBP to £3,748 GBP

B+
Cheapest Retailer
-
£2,590 GBP
$3,470 USD
B+
Retailer 2
-
£2,641 GBP
$3,538 USD
View
B+
Retailer 3
-
£2,945 GBP
$3,947 USD
View
B
Retailer 4
-
£3,000 GBP
$4,020 USD
View
B
Retailer 5
-
£3,381 GBP
$4,530 USD
View
B
Retailer 6
-
£3,381 GBP
$4,530 USD
View
B
Retailer 7
-
£3,493 GBP
$4,680 USD
View
Most Expensive
C
Yorxs
71FBB2244 · Oct 31
£3,748 GBP
€4,783 EUR
View
7 more retailers have this diamond
Prices start from £2,590 GBPSave up to £1,158 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
£2,590 GBP