Oval|Natural|GIA

1.70ct F SI1 Oval Natural Diamond

EX • F/SI1 • GIA 6542684141

Certificate GIA 6542684141

Diamond specifications and retailer prices

From £7,637 GBP
As of October 28, 2026
Save £3,838 GBP (33%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £11,746 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542684141. Listed at 19 retailers as of October 28, 2026, with a 50% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542684141
Dimensions9.44 × 6.75 × 4.16 mm
L/W Ratio1.40
Top View
9.44 mm6.75 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542684141
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.7%

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: £11,103 GBP|Low: £6,460 GBP|High: £11,476 GBP|Avg: £8,360 GBP|+33.4%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 4£6,484 GBP
Retailer 16£6,956 GBP
Retailer 6£7,020 GBP
Retailer 11£7,047 GBP
Retailer 7£7,486 GBP
Retailer 15£7,637 GBP
Retailer 9£7,705 GBP
Retailer 3£7,722 GBP
Retailer 18£7,879 GBP
Retailer 10£8,054 GBP
Retailer 19£8,798 GBP
Retailer 13£9,066 GBP
Retailer 5£10,194 GBP
Retailer 8£10,599 GBP
Retailer 2£10,979 GBP
Retailer 17£11,068 GBP
Retailer 1£11,103 GBP
Retailer 14£11,103 GBP
Retailer 12£11,476 GBP

20 data points across 19 retailers

19 retailers£7,637 GBP to £11,476 GBP

Retailer 1
-
£6,484 GBP
$8,701 USD
Price last confirmed 7 days ago
Retailer 2
-
£6,956 GBP
$9,335 USD
View
Price last confirmed 5 days ago
Retailer 3
-
£7,486 GBP
$10,046 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£7,634 GBP
$10,245 USD
View
Price last confirmed 41 days ago
B+
Retailer 5
-
£7,637 GBP
View
Retailer 6
-
£7,722 GBP
A$15,943 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£7,879 GBP
View
B
Retailer 8
-
£8,054 GBP
A$16,628 AUD
View
B
Retailer 9
-
£8,798 GBP
€11,244 EUR
View
Retailer 10
-
£8,810 GBP
$11,822 USD
View
Price last confirmed 41 days ago
B
Retailer 11
-
£9,066 GBP
CA$16,897 CAD
View
Retailer 12
-
£10,194 GBP
ZAR 221,006 ZAR
View
Price last confirmed 21 days ago
Retailer 13
-
£10,749 GBP
A$22,191 AUD
View
Price last confirmed 24 days ago
B
Retailer 14
-
£10,979 GBP
View
B
Retailer 15
-
£11,068 GBP
View
B
Retailer 16
-
£11,103 GBP
$14,900 USD
View
B
Retailer 17
-
£11,103 GBP
$14,900 USD
View
B
Retailer 18
-
£11,476 GBP
$15,400 USD
View
Most Expensive
NZ Jewellers
8bfe7169-9050-4047-a436-5950f93414ae · Sep 19
£11,746 GBP
$15,762 USD
View
Price last confirmed 43 days ago
18 more retailers have this diamond
Prices start from £7,637 GBPSave up to £3,838 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 Oval
£7,637 GBP