Oval|Natural|GIA

1.50ct F SI1 Oval Natural Diamond

ID • F/SI1 • GIA 5553539882

Certificate GIA 5553539882

Diamond specifications and retailer prices

From £5,284 GBP
HK$55,400 HKD
As of November 1, 2026
Save £4,536 GBP (46%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £11,786 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct 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 5553539882. Listed at 24 retailers as of November 1, 2026, with a 86% 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

1.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.72°
Pavilion angle38.66°
OriginNatural
Grading LabGIA
CertificateGIA 5553539882
Dimensions9.60 × 6.14 × 3.92 mm
L/W Ratio1.56
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural
Top View
9.60 mm6.14 mm1.50 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553539882
Side View
Table 63.0%Crown 33.72°Girdle: MED-THKPavilion 38.66°Culet: NoneDepth 63.8%

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: Nov 1
Current: £7,698 GBP|Low: £5,284 GBP|High: £10,127 GBP|Avg: £6,839 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 2, 2026
Retailer 9£5,284 GBP
Retailer 3£5,518 GBP
Retailer 11£5,586 GBP
Retailer 6£5,659 GBP
Retailer 24£5,868 GBP
Retailer 2£5,892 GBP
Retailer 4£5,942 GBP
Retailer 18£5,964 GBP
Retailer 23£6,242 GBP
Retailer 8£6,280 GBP
Retailer 13£6,307 GBP
Retailer 14£6,312 GBP
Retailer 16£6,505 GBP
Retailer 12£6,523 GBP
Retailer 22£6,644 GBP
Retailer 7£6,757 GBP
Retailer 17£7,049 GBP
Retailer 5£7,383 GBP
Retailer 25£7,415 GBP
Retailer 1£7,698 GBP
Retailer 21£7,759 GBP
Retailer 10£8,175 GBP
Retailer 20£8,657 GBP
Retailer 19£9,821 GBP
Retailer 15£10,127 GBP

33 data points across 25 retailers

24 retailers£5,284 GBP to £9,821 GBP

B+
Cheapest Retailer
-
£5,284 GBP
HK$55,400 HKD
B+
Retailer 2
-
£5,518 GBP
$7,405 USD
View
B+
Retailer 3
-
£5,659 GBP
$7,594 USD
View
B+
Retailer 4
-
£5,868 GBP
$7,875 USD
View
B+
Retailer 5
-
£5,892 GBP
$7,907 USD
View
Final sale: no returns
B+
Retailer 6
-
£5,942 GBP
$7,974 USD
View
Retailer 7
-
£5,964 GBP
SGD 10,816 SGD
View
Price last confirmed 32 days ago
B+
Retailer 8
-
£6,242 GBP
SGD 11,319 SGD
View
B+
Retailer 9
-
£6,280 GBP
$8,427 USD
View
Retailer 10
-
£6,312 GBP
$8,470 USD
View
Price last confirmed 35 days ago
B+
Retailer 11
-
£6,523 GBP
View
Retailer 12
-
£6,644 GBP
A$13,717 AUD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£6,757 GBP
$9,067 USD
View
B+
Retailer 14
-
£6,983 GBP
$9,371 USD
View
Retailer 15
-
£7,047 GBP
$9,456 USD
View
Price last confirmed 32 days ago
B+
Retailer 16
-
£7,049 GBP
$9,459 USD
View
Retailer 17
-
£7,155 GBP
$9,602 USD
View
Price last confirmed 34 days ago
B
Retailer 18
-
£7,383 GBP
$9,908 USD
View
B
Retailer 19
-
£7,415 GBP
$9,950 USD
View
B
Retailer 20
-
£7,698 GBP
€9,838 EUR
View
Retailer 21
-
£8,131 GBP
$10,911 USD
View
Price last confirmed 34 days ago
B
Retailer 22
-
£8,657 GBP
ZAR 187,680 ZAR
View
B
Retailer 23
-
£9,821 GBP
View
Most Expensive
NZ Jewellers
b49308c9-df40-4ce7-ade1-6d9f9b036be3 · Sep 30
£11,786 GBP
$15,816 USD
View
Price last confirmed 33 days ago
23 more retailers have this diamond
Prices start from £5,284 GBPSave up to £4,536 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+
1.50ct Oval
£5,284 GBP