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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

ID • I/SI1 • GIA 2567290792

Certificate GIA 2567290792

Diamond specifications and retailer prices

From £4,499 GBP
HK$47,100 HKD
As of November 1, 2026
Save £3,852 GBP (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £8,351 GBP at MOH London · As of November 1, 2026
View at MOH London

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 2567290792. Listed at 17 retailers as of November 1, 2026, with prices from £4,499 to £8,351, a £3,852 spread on the same certified stone. MOH London lists it at £8,351. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2567290792
Dimensions11.31 × 5.96 × 3.78 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Cavity, Needle
Top View
11.31 mm5.96 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2567290792
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £8,351 GBP|Low: £4,499 GBP|High: £8,578 GBP|Avg: £5,946 GBP|-2.6%
MOH London
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
November 2, 2026
Retailer 17£4,499 GBP
Retailer 9£5,212 GBP
Retailer 6£5,348 GBP
Retailer 15£5,463 GBP
Retailer 8£5,512 GBP
Retailer 14£5,512 GBP
Retailer 4£5,531 GBP
Retailer 11£5,605 GBP
Retailer 7£5,614 GBP
Retailer 2£5,686 GBP
Retailer 5£5,829 GBP
Retailer 13£5,992 GBP
Retailer 12£6,118 GBP
Retailer 10£6,547 GBP
Retailer 3£6,914 GBP
Retailer 16£7,362 GBP
MOH London£8,351 GBP

30 data points across 17 retailers

17 retailers£4,499 GBP to £8,351 GBP

A
Cheapest Retailer
-
£4,499 GBP
HK$47,100 HKD
Retailer 2
-
£5,212 GBP
SGD 9,438 SGD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
£5,348 GBP
SGD 9,684 SGD
View
B+
Retailer 4
-
£5,463 GBP
$7,320 USD
View
B+
Retailer 5
-
£5,512 GBP
$7,385 USD
View
B+
Retailer 6
-
£5,512 GBP
$7,385 USD
View
B+
Retailer 7
-
£5,531 GBP
$7,411 USD
View
Final sale: no returns
B+
Retailer 8
-
£5,605 GBP
View
Retailer 9
-
£5,614 GBP
$7,522 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
£5,686 GBP
View
Retailer 11
-
£5,829 GBP
A$12,016 AUD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£5,992 GBP
$8,029 USD
View
B+
Retailer 13
-
£6,118 GBP
$8,198 USD
View
B+
Retailer 14
-
£6,547 GBP
€8,354 EUR
View
B
Retailer 15
-
£6,914 GBP
$9,264 USD
View
B+
Retailer 16
-
£7,362 GBP
ZAR 159,352 ZAR
View
Most Expensive
B
MOH London
B88E0531F · Nov 1
£8,351 GBP
View
16 more retailers have this diamond
Prices start from £4,499 GBPSave up to £3,852 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.

A
1.50ct Marquise
£4,499 GBP