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Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

VG • E/SI1 • GIA 6565552279

Certificate GIA 6565552279

Diamond specifications and retailer prices

From £5,865 GBP
SGD 10,554 SGD
As of October 30, 2026
Save £4,647 GBP (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £10,512 GBP at With Clarity · As of October 29, 2026
View at With Clarity

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565552279. Listed at 15 retailers as of October 29, 2026, with prices from £5,865 to £10,512, a £4,647 spread on the same certified stone. With Clarity lists it at £10,512. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.6°
Pavilion angle37.96°
OriginNatural
Grading LabGIA
CertificateGIA 6565552279
Dimensions9.42 × 6.33 × 3.80 mm
L/W Ratio1.49
Culet sizeNone
Top View
9.42 mm6.33 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565552279
Side View
Table 58.0%Crown 37.6°Girdle: STK-THKPavilion 37.96°Culet: NoneDepth 60.1%

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: £6,667 GBP|Low: £5,865 GBP|High: £10,512 GBP|Avg: £7,299 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
With Clarity
October 30, 2026
Retailer 5£5,865 GBP
Retailer 3£6,208 GBP
Retailer 13£6,236 GBP
Retailer 8£6,375 GBP
Retailer 9£6,454 GBP
Retailer 2£6,544 GBP
Retailer 1£6,667 GBP
Retailer 4£7,529 GBP
Retailer 10£7,601 GBP
Retailer 7£7,768 GBP
Retailer 12£7,774 GBP
Retailer 6£8,646 GBP
Retailer 11£9,522 GBP
With Clarity£10,512 GBP

20 data points across 14 retailers

15 retailers£5,865 GBP to £10,512 GBP

B+
Cheapest Retailer
-
£5,865 GBP
SGD 10,554 SGD
B+
Retailer 2
-
£6,208 GBP
$8,267 USD
View
B+
Retailer 3
-
£6,236 GBP
$8,305 USD
View
B+
Retailer 4
-
£6,349 GBP
SGD 11,426 SGD
View
Retailer 5
-
£6,375 GBP
$8,490 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£6,454 GBP
$8,595 USD
View
B+
Retailer 7
-
£6,544 GBP
$8,714 USD
View
B+
Retailer 8
-
£6,667 GBP
View
B
Retailer 9
-
£7,529 GBP
$10,027 USD
View
B
Retailer 10
-
£7,601 GBP
$10,122 USD
View
B+
Retailer 11
-
£7,768 GBP
€9,852 EUR
View
B+
Retailer 12
-
£7,774 GBP
$10,353 USD
View
B
Retailer 13
-
£8,646 GBP
$11,514 USD
View
B
Retailer 14
-
£9,522 GBP
$12,680 USD
View
Most Expensive
B
With Clarity
6565552279 · Oct 29
£10,512 GBP
$13,998 USD
View
14 more retailers have this diamond
Prices start from £5,865 GBPSave up to £4,647 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+
1.51ct Oval
£5,865 GBP