Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7546690415

Certificate GIA 7546690415

Diamond specifications and retailer prices

From £6,649 GBP
HK$69,600 HKD
As of October 30, 2026
Save £4,461 GBP (40%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £12,282 GBP at NZ Jewellers · As of September 25, 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 D 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 7546690415. Listed at 18 retailers as of October 30, 2026, with a 67% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 7546690415
Dimensions9.00 × 6.56 × 4.32 mm
L/W Ratio1.37
Girdle conditionFaceted
Top View
9.00 mm6.56 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546690415
Side View
Table 59.0%CrownGirdle: STK-THKPavilion 39.7°Culet: NoneDepth 65.8%

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 30
Current: £7,693 GBP|Low: £6,649 GBP|High: £11,496 GBP|Avg: £8,090 GBP|-2.1%
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
November 1, 2026
Retailer 5£6,649 GBP
Retailer 3£7,022 GBP
Retailer 13£7,113 GBP
Retailer 10£7,118 GBP
Retailer 7£7,139 GBP
Retailer 2£7,180 GBP
Retailer 4£7,350 GBP
Retailer 8£7,486 GBP
Retailer 1£7,693 GBP
Retailer 11£7,787 GBP
Retailer 16£7,934 GBP
Retailer 15£8,267 GBP
Retailer 14£9,085 GBP
Retailer 6£9,546 GBP
Retailer 12£10,451 GBP
Retailer 9£11,110 GBP

27 data points across 16 retailers

18 retailers£6,649 GBP to £11,110 GBP

A
Cheapest Retailer
-
£6,649 GBP
HK$69,600 HKD
B+
Retailer 2
-
£7,022 GBP
$9,409 USD
View
B+
Retailer 3
-
£7,113 GBP
$9,530 USD
View
Final sale: no returns
B+
Retailer 4
-
£7,118 GBP
€9,083 EUR
View
B+
Retailer 5
-
£7,139 GBP
$9,565 USD
View
Retailer 6
-
£7,180 GBP
$9,621 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£7,350 GBP
$9,848 USD
View
B+
Retailer 8
-
£7,486 GBP
$10,030 USD
View
B+
Retailer 9
-
£7,693 GBP
$10,307 USD
View
B+
Retailer 10
-
£7,787 GBP
View
Retailer 11
-
£7,934 GBP
A$16,355 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£8,267 GBP
$11,077 USD
View
B+
Retailer 13
-
£8,663 GBP
A$17,858 AUD
View
B+
Retailer 14
-
£9,085 GBP
€11,593 EUR
View
Retailer 15
-
£9,546 GBP
$12,791 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
£10,451 GBP
ZAR 226,212 ZAR
View
B
Retailer 17
-
£11,110 GBP
View
Most Expensive
NZ Jewellers
46cf6ef5-f3e5-4670-bda5-318c872c6733 · Sep 25
£12,282 GBP
$16,457 USD
View
Price last confirmed 36 days ago
17 more retailers have this diamond
Prices start from £6,649 GBPSave up to £4,461 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
£6,649 GBP