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Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2235994301

Certificate GIA 2235994301

Diamond specifications and retailer prices

From £4,939 GBP
HK$51,700 HKD
As of October 30, 2026
Save £6,346 GBP (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £11,285 GBP at NZ Jewellers · As of October 27, 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 2235994301. Listed at 9 retailers as of October 27, 2026, with prices from £4,939 to £11,285, a £6,346 spread on the same certified stone. NZ Jewellers lists it at £11,285. 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
FluorescenceMedium
Pavilion angle37.45°
OriginNatural
Grading LabGIA
CertificateGIA 2235994301
Dimensions9.20 × 6.56 × 4.25 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather
Top View
9.20 mm6.56 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2235994301
Side View
Table 63.0%CrownGirdle: THK-VTKPavilion 37.45°Culet: NoneDepth 64.8%

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: £11,285 GBP|Low: £4,939 GBP|High: £12,309 GBP|Avg: £7,327 GBP|-8.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7£4,939 GBP
Retailer 4£5,510 GBP
Retailer 9£5,716 GBP
Retailer 8£6,025 GBP
Retailer 5£6,748 GBP
Retailer 6£6,851 GBP
Retailer 3£7,402 GBP
Retailer 2£9,454 GBP
NZ Jewellers£11,285 GBP

36 data points across 9 retailers

9 retailers£4,939 GBP to £11,285 GBP

A
Cheapest Retailer
-
£4,939 GBP
HK$51,700 HKD
Retailer 2
-
£5,510 GBP
€7,032 EUR
View
Price last confirmed 4 days ago
Retailer 3
-
£5,716 GBP
SGD 10,349 SGD
View
Price last confirmed 20 days ago
A
Retailer 4
-
£6,025 GBP
$8,073 USD
View
B+
Retailer 5
-
£6,748 GBP
$9,041 USD
View
B+
Retailer 6
-
£6,851 GBP
$9,180 USD
View
B+
Retailer 7
-
£7,402 GBP
€9,445 EUR
View
B+
Retailer 8
-
£9,454 GBP
View
Most Expensive
B
NZ Jewellers
64cafd8e-cc68-4655-a8a0-e9af2cd50caf · Oct 27
£11,285 GBP
$15,121 USD
View
8 more retailers have this diamond
Prices start from £4,939 GBPSave up to £6,346 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
£4,939 GBP