Oval|Natural|GIA

1.70ct F SI1 Oval Natural Diamond

ID • F/SI1 • GIA 3565300840

Certificate GIA 3565300840

Diamond specifications and retailer prices

From £5,389 GBP
HK$56,500 HKD
As of October 29, 2026
Save £5,024 GBP (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £12,147 GBP at NZ Jewellers · As of September 30, 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 3565300840. Listed at 19 retailers as of October 29, 2026, with a 93% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3565300840
Dimensions8.92 × 6.50 × 4.28 mm
L/W Ratio1.37
Girdle conditionFaceted
Top View
8.92 mm6.50 mm1.70 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3565300840
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 65.9%

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: £5,889 GBP|Low: £5,237 GBP|High: £10,421 GBP|Avg: £6,820 GBP|+1.8%
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
Retailer 20
October 29, 2026
Retailer 19£5,389 GBP
Retailer 2£5,728 GBP
Retailer 13£5,791 GBP
Retailer 10£5,847 GBP
Retailer 1£5,889 GBP
Retailer 16£6,040 GBP
Retailer 9£6,088 GBP
Retailer 20£6,181 GBP
Retailer 4£6,215 GBP
Retailer 3£6,260 GBP
Retailer 5£6,329 GBP
Retailer 18£6,470 GBP
Retailer 11£6,768 GBP
Retailer 12£6,994 GBP
Retailer 8£7,061 GBP
Retailer 6£7,740 GBP
Retailer 15£7,925 GBP
Retailer 17£8,510 GBP
Retailer 7£8,943 GBP
Retailer 14£10,413 GBP

17 data points across 20 retailers

19 retailers£5,389 GBP to £10,413 GBP

A
Cheapest Retailer
-
£5,389 GBP
HK$56,500 HKD
B+
Retailer 2
-
£5,728 GBP
$7,687 USD
View
Retailer 3
-
£5,847 GBP
$7,846 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£5,889 GBP
€7,526 EUR
View
Price last confirmed 4 days ago
B+
Retailer 5
-
£6,040 GBP
$8,105 USD
View
B+
Retailer 6
-
£6,088 GBP
$8,170 USD
View
Retailer 7
-
£6,181 GBP
$8,295 USD
View
Price last confirmed 5 days ago
B+
Retailer 8
-
£6,260 GBP
$8,400 USD
View
B+
Retailer 9
-
£6,329 GBP
$8,493 USD
View
B+
Retailer 10
-
£6,470 GBP
View
Retailer 11
-
£6,768 GBP
A$13,972 AUD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
£6,994 GBP
View
Retailer 13
-
£7,061 GBP
$9,476 USD
View
Price last confirmed 21 days ago
B+
Retailer 14
-
£7,740 GBP
$10,387 USD
View
B+
Retailer 15
-
£7,925 GBP
€10,128 EUR
View
B
Retailer 16
-
£8,510 GBP
$11,420 USD
View
Retailer 17
-
£8,943 GBP
ZAR 193,879 ZAR
View
Price last confirmed 21 days ago
B
Retailer 18
-
£10,413 GBP
View
Most Expensive
NZ Jewellers
04601adf-ea45-47b7-b552-54767a212ff9 · Sep 30
£12,147 GBP
$16,300 USD
View
Price last confirmed 33 days ago
18 more retailers have this diamond
Prices start from £5,389 GBPSave up to £5,024 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
£5,389 GBP