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Oval|Natural|GIA

1.70ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 5242011837

Certificate GIA 5242011837

Diamond specifications and retailer prices

From £2,534 GBP
As of November 6, 2026
Save £3,115 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,328 GBP at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.7ct natural oval diamond

This 1.7ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5242011837. Listed at 16 retailers as of November 4, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5242011837
Dimensions8.93 × 6.52 × 4.29 mm
L/W Ratio1.37
Girdle conditionFaceted
Top View
8.93 mm6.52 mm1.70 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5242011837
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,016 GBP|Low: £2,505 GBP|High: £5,884 GBP|Avg: £3,548 GBP|-3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 3£2,534 GBP
Retailer 11£2,693 GBP
Retailer 10£2,813 GBP
Retailer 6£2,974 GBP
Retailer 1£3,016 GBP
Retailer 4£3,050 GBP
Retailer 13£3,059 GBP
Retailer 14£3,101 GBP
Retailer 7£3,218 GBP
Retailer 2£3,410 GBP
Retailer 5£4,023 GBP
Retailer 8£4,339 GBP
Retailer 12£5,203 GBP
Retailer 9£5,649 GBP

29 data points across 14 retailers

16 retailers£2,534 GBP to £5,649 GBP

A
Cheapest Retailer
-
£2,534 GBP
A
Retailer 2
-
£2,693 GBP
View
A
Retailer 3
-
£2,813 GBP
View
A
Retailer 4
-
£2,974 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,016 GBP
View
A
Retailer 6
-
£3,050 GBP
View
A
Retailer 7
-
£3,059 GBP
View
A
Retailer 8
-
£3,101 GBP
View
B+
Retailer 9
-
£3,218 GBP
View
B+
Retailer 10
-
£3,410 GBP
View
B+
Retailer 11
-
£3,413 GBP
View
B+
Retailer 12
-
£4,023 GBP
View
B
Retailer 13
-
£4,339 GBP
View
B
Retailer 14
-
£5,203 GBP
View
B
Retailer 15
-
£5,649 GBP
View
Most Expensive
NZ Jewellers
5b01362c-3944-4ccb-89a6-ec10d3852200 · Sep 19
£6,328 GBP
$8,470 USD
View
Price last confirmed 47 days ago
15 more retailers have this diamond
Prices start from £2,534 GBPSave up to £3,115 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 Oval
£2,534 GBP