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Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 5546405656

Certificate GIA 5546405656

Diamond specifications and retailer prices

From £7,308 GBP
HK$76,500 HKD
As of October 30, 2026
Save £6,767 GBP (48%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £14,075 GBP at With Clarity · As of October 30, 2026
View at With Clarity

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 5546405656. Listed at 22 retailers as of October 30, 2026, with prices from £7,308 to £14,075, a £6,767 spread on the same certified stone. With Clarity lists it at £14,075. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.61°
Pavilion angle34.12°
OriginNatural
Grading LabGIA
CertificateGIA 5546405656
Dimensions9.66 × 6.56 × 3.93 mm
L/W Ratio1.47
Top View
9.66 mm6.56 mm1.70 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546405656
Side View
Table 62.0%Crown 38.61°Girdle: STK-VTKPavilion 34.12°Culet: NoneDepth 59.8%

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 30
Current: £12,485 GBP|Low: £7,487 GBP|High: £12,636 GBP|Avg: £9,531 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4£7,506 GBP
Retailer 7£8,502 GBP
Retailer 2£8,641 GBP
Retailer 6£8,687 GBP
Retailer 8£8,823 GBP
Retailer 9£9,707 GBP
Retailer 5£10,072 GBP
Retailer 3£11,745 GBP
Retailer 1£12,485 GBP

34 data points across 9 retailers

22 retailers£7,308 GBP to £14,075 GBP

B+
Cheapest Retailer
-
£7,308 GBP
HK$76,500 HKD
B+
Retailer 2
-
£7,506 GBP
₹957,798 INR
View
Retailer 3
-
£8,083 GBP
SGD 14,636 SGD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
£8,187 GBP
$10,970 USD
View
B+
Retailer 5
-
£8,314 GBP
$11,140 USD
View
B+
Retailer 6
-
£8,502 GBP
SGD 15,394 SGD
View
B+
Retailer 7
-
£8,641 GBP
View
Retailer 8
-
£8,687 GBP
A$17,907 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£8,695 GBP
$11,650 USD
View
B+
Retailer 10
-
£8,823 GBP
$11,822 USD
View
Final sale: no returns
Retailer 11
-
£8,825 GBP
$11,824 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
£9,560 GBP
$12,809 USD
View
B
Retailer 13
-
£9,707 GBP
$13,006 USD
View
B
Retailer 14
-
£9,790 GBP
$13,118 USD
View
B
Retailer 15
-
£9,790 GBP
$13,118 USD
View
B
Retailer 16
-
£10,057 GBP
$13,475 USD
View
B
Retailer 17
-
£10,072 GBP
€12,853 EUR
View
B
Retailer 18
-
£11,030 GBP
$14,779 USD
View
B
Retailer 19
-
£11,745 GBP
ZAR 254,225 ZAR
View
B
Retailer 20
-
£12,485 GBP
View
B
Retailer 21
-
£13,324 GBP
$17,853 USD
View
Most Expensive
B
With Clarity
5546405656 · Oct 30
£14,075 GBP
$18,859 USD
View
21 more retailers have this diamond
Prices start from £7,308 GBPSave up to £6,767 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
£7,308 GBP