Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2544995398

Certificate GIA 2544995398

Diamond specifications and retailer prices

From £5,925 GBP
$7,951 USD
As of November 2, 2026
Save £4,747 GBP (44%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £10,672 GBP at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544995398. Listed at 21 retailers as of October 27, 2026, with prices from £5,925 to £10,672, a £4,747 spread on the same certified stone. NZ Jewellers lists it at £10,672. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544995398
Dimensions10.95 × 5.92 × 3.84 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.95 mm5.92 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544995398
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.9%

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 2
Current: £10,672 GBP|Low: £5,925 GBP|High: £10,672 GBP|Avg: £7,488 GBP
NZ Jewellers
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
November 2, 2026
Retailer 11£5,925 GBP
Retailer 5£5,995 GBP
Retailer 21£6,360 GBP
Retailer 4£6,403 GBP
Retailer 10£6,456 GBP
Retailer 6£6,636 GBP
Retailer 12£6,826 GBP
Retailer 18£6,937 GBP
Retailer 16£6,941 GBP
Retailer 3£7,032 GBP
Retailer 2£7,044 GBP
Retailer 7£7,073 GBP
Retailer 13£7,265 GBP
Retailer 9£7,848 GBP
Retailer 8£7,889 GBP
Retailer 20£8,004 GBP
Retailer 15£8,066 GBP
Retailer 14£8,428 GBP
Retailer 19£9,407 GBP
Retailer 17£10,001 GBP
NZ Jewellers£10,672 GBP

19 data points across 21 retailers

21 retailers£5,925 GBP to £10,672 GBP

B+
Cheapest Retailer
-
£5,925 GBP
$7,951 USD
B+
Retailer 2
-
£5,995 GBP
$8,045 USD
View
B+
Retailer 3
-
£6,360 GBP
$8,535 USD
View
Retailer 4
-
£6,403 GBP
$8,593 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£6,456 GBP
$8,664 USD
View
B
Retailer 6
-
£6,636 GBP
CA$12,369 CAD
View
B
Retailer 7
-
£6,826 GBP
$9,160 USD
View
B
Retailer 8
-
£6,937 GBP
$9,309 USD
View
B
Retailer 9
-
£6,941 GBP
View
Retailer 10
-
£7,032 GBP
A$14,517 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£7,044 GBP
$9,452 USD
View
B
Retailer 12
-
£7,073 GBP
$9,492 USD
View
B+
Retailer 13
-
£7,265 GBP
View
B
Retailer 14
-
£7,848 GBP
$10,532 USD
View
B
Retailer 15
-
£7,889 GBP
$10,587 USD
View
B
Retailer 16
-
£8,004 GBP
$10,741 USD
View
B
Retailer 17
-
£8,066 GBP
€10,309 EUR
View
Retailer 18
-
£8,428 GBP
$11,310 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£9,407 GBP
ZAR 203,930 ZAR
View
B
Retailer 20
-
£10,001 GBP
View
Most Expensive
B
NZ Jewellers
b540eeae-3f64-4cdf-8e35-f742a2ceb8b4 · Oct 27
£10,672 GBP
$14,321 USD
View
20 more retailers have this diamond
Prices start from £5,925 GBPSave up to £4,747 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
£5,925 GBP