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Marquise|Natural|GIA

1.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6552621628

Certificate GIA 6552621628

Diamond specifications and retailer prices

From £7,572 GBP
As of November 1, 2026
Save £6,421 GBP (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £13,993 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise 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 6552621628. Listed at 22 retailers as of November 1, 2026, with prices from £7,572 to £13,993, a £6,421 spread on the same certified stone. NZ Jewellers lists it at £13,993. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552621628
Dimensions11.12 × 6.01 × 3.69 mm
L/W Ratio1.85
Key to symbols
Feather, Crystal, Needle, Natural
Top View
11.12 mm6.01 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552621628
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.3%

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: £8,990 GBP|Low: £7,572 GBP|High: £13,270 GBP|Avg: £9,493 GBP|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 8£7,572 GBP
Retailer 9£7,790 GBP
Retailer 10£8,282 GBP
Retailer 2£8,466 GBP
Retailer 1£8,990 GBP
Retailer 7£9,129 GBP
Retailer 3£9,343 GBP
Retailer 4£10,066 GBP
Retailer 5£12,249 GBP
Retailer 6£13,077 GBP

38 data points across 10 retailers

22 retailers£7,572 GBP to £13,993 GBP

B+
Cheapest Retailer
-
£7,572 GBP
B+
Retailer 2
-
£7,790 GBP
View
B+
Retailer 3
-
£7,826 GBP
View
B+
Retailer 4
-
£8,282 GBP
View
Retailer 5
-
£8,396 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£8,466 GBP
View
B+
Retailer 7
-
£8,990 GBP
View
B+
Retailer 8
-
£9,095 GBP
View
Retailer 9
-
£9,129 GBP
View
Price last confirmed 15 days ago
B+
Retailer 10
-
£9,235 GBP
View
B
Retailer 11
-
£9,296 GBP
View
B+
Retailer 12
-
£9,343 GBP
View
B
Retailer 13
-
£9,780 GBP
View
B
Retailer 14
-
£9,780 GBP
View
B
Retailer 15
-
£9,979 GBP
View
B
Retailer 16
-
£10,066 GBP
View
B
Retailer 17
-
£10,108 GBP
View
B
Retailer 18
-
£10,495 GBP
View
Retailer 19
-
£11,044 GBP
View
Price last confirmed 15 days ago
B
Retailer 20
-
£12,249 GBP
View
B
Retailer 21
-
£13,077 GBP
View
Most Expensive
B
NZ Jewellers
67900167-de5d-4b53-ac4f-ac2b59c55360 · Nov 5
£13,993 GBP
$18,729 USD
View
21 more retailers have this diamond
Prices start from £7,572 GBPSave up to £6,421 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 Marquise
£7,572 GBP