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Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 1568212658

Certificate GIA 1568212658

Diamond specifications and retailer prices

From £4,988 GBP
As of November 6, 2026
Save £6,120 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £11,109 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1568212658. Listed at 16 retailers as of November 5, 2026, with prices from £4,988 to £11,109, a £6,120 spread on the same certified stone. NZ Jewellers lists it at £11,109. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568212658
Dimensions11.74 × 5.86 × 3.53 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot, Natural
Top View
11.74 mm5.86 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568212658
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NDepth 60.2%

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 6
Current: £11,109 GBP|Low: £4,988 GBP|High: £11,780 GBP|Avg: £7,026 GBP|-5.7%
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
November 6, 2026
Retailer 2£4,988 GBP
Retailer 12£5,620 GBP
Retailer 4£5,740 GBP
Retailer 8£6,112 GBP
Retailer 11£6,132 GBP
Retailer 16£6,141 GBP
Retailer 7£6,389 GBP
Retailer 9£6,400 GBP
Retailer 3£6,440 GBP
Retailer 6£6,642 GBP
Retailer 14£6,744 GBP
Retailer 5£6,787 GBP
Retailer 10£6,848 GBP
Retailer 15£7,664 GBP
Retailer 13£9,231 GBP
NZ Jewellers£11,109 GBP

18 data points across 16 retailers

16 retailers£4,988 GBP to £11,109 GBP

A
Cheapest Retailer
-
£4,988 GBP
A
Retailer 2
-
£5,620 GBP
View
A
Retailer 3
-
£5,740 GBP
View
B+
Retailer 4
-
£6,112 GBP
View
B+
Retailer 5
-
£6,132 GBP
View
A
Retailer 6
-
£6,141 GBP
View
Retailer 7
-
£6,389 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£6,400 GBP
View
B+
Retailer 9
-
£6,440 GBP
View
B+
Retailer 10
-
£6,642 GBP
View
B+
Retailer 11
-
£6,744 GBP
View
B+
Retailer 12
-
£6,787 GBP
View
B+
Retailer 13
-
£6,848 GBP
View
B+
Retailer 14
-
£7,664 GBP
View
B
Retailer 15
-
£9,231 GBP
View
Most Expensive
B
NZ Jewellers
5e8ed6f3-582f-4b80-b5a8-1a081906faf4 · Nov 5
£11,109 GBP
$14,869 USD
View
15 more retailers have this diamond
Prices start from £4,988 GBPSave up to £6,120 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
£4,988 GBP