Round|Natural|GIA

1.50ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6542246597

Certificate GIA 6542246597

Diamond specifications and retailer prices

From £5,892 GBP
$7,894 USD
As of November 1, 2026
Save £3,937 GBP (40%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £12,585 GBP at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 6542246597. Listed at 25 retailers as of November 1, 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

1.50
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6542246597
Dimensions7.34 × 7.29 × 4.52 mm
L/W Ratio1.01
Top View
7.34 mm7.29 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542246597
Side View
Table 59.0%Crown 34.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.8%

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: £8,238 GBP|Low: £5,768 GBP|High: £9,947 GBP|Avg: £7,780 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2£5,892 GBP
Retailer 3£6,254 GBP
Retailer 11£6,292 GBP
Retailer 4£6,757 GBP
Retailer 9£6,908 GBP
Retailer 10£7,216 GBP
Retailer 5£7,894 GBP
Retailer 1£8,238 GBP
Retailer 7£9,245 GBP
Retailer 8£9,701 GBP
Retailer 6£9,828 GBP

34 data points across 11 retailers

25 retailers£5,892 GBP to £9,828 GBP

B+
Cheapest Retailer
-
£5,892 GBP
$7,894 USD
B+
Retailer 2
-
£6,254 GBP
$8,380 USD
View
B+
Retailer 3
-
£6,292 GBP
$8,431 USD
View
Final sale: no returns
Retailer 4
-
£6,293 GBP
$8,432 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£6,708 GBP
$8,987 USD
View
B+
Retailer 6
-
£6,757 GBP
View
Retailer 7
-
£6,817 GBP
$9,134 USD
View
Price last confirmed 25 days ago
Retailer 8
-
£6,817 GBP
$9,134 USD
View
Price last confirmed 45 days ago
Retailer 9
-
£6,908 GBP
A$14,240 AUD
View
Price last confirmed 9 days ago
Retailer 10
-
£6,922 GBP
$9,275 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
£7,165 GBP
$9,600 USD
View
B+
Retailer 12
-
£7,165 GBP
$9,600 USD
View
B+
Retailer 13
-
£7,216 GBP
$9,668 USD
View
B+
Retailer 14
-
£7,404 GBP
$9,920 USD
View
B+
Retailer 15
-
£7,519 GBP
$10,075 USD
View
Retailer 16
-
£7,866 GBP
$10,540 USD
View
Price last confirmed 41 days ago
Retailer 17
-
£7,866 GBP
$10,540 USD
View
Price last confirmed 24 days ago
B+
Retailer 18
-
£7,894 GBP
€10,073 EUR
View
B
Retailer 19
-
£8,238 GBP
View
Retailer 20
-
£8,283 GBP
$11,098 USD
View
Price last confirmed 18 days ago
B
Retailer 21
-
£9,245 GBP
ZAR 200,109 ZAR
View
B
Retailer 22
-
£9,701 GBP
View
B
Retailer 23
-
£9,828 GBP
View
Retailer 24
-
£12,585 GBP
$16,863 USD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
ba4b0b67-c199-47ad-b61b-be1379b7ec82 · Sep 26
£12,585 GBP
$16,863 USD
View
Price last confirmed 36 days ago
24 more retailers have this diamond
Prices start from £5,892 GBPSave up to £3,937 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 Round
£5,892 GBP