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Marquise|Natural|GIA

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 7566212506

Certificate GIA 7566212506

Diamond specifications and retailer prices

From £4,334 GBP
₹553,920 INR
As of November 2, 2026
Save £5,258 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £9,592 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct 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 7566212506. Listed at 16 retailers as of October 30, 2026, with prices from £4,334 to £9,592, a £5,258 spread on the same certified stone. NZ Jewellers lists it at £9,592. 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

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7566212506
Dimensions11.42 × 6.02 × 3.79 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Twinning Wisp, Crystal, Needle, Indented Natural
Top View
11.42 mm6.02 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7566212506
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.9%

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 2
Current: £9,592 GBP|Low: £4,325 GBP|High: £10,065 GBP|Avg: £5,908 GBP|-4.7%
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 2, 2026
Retailer 2£4,334 GBP
Retailer 5£4,574 GBP
Retailer 15£4,985 GBP
Retailer 6£5,002 GBP
Retailer 16£5,084 GBP
Retailer 13£5,294 GBP
Retailer 11£5,362 GBP
Retailer 9£5,556 GBP
Retailer 3£5,589 GBP
Retailer 7£5,735 GBP
Retailer 14£5,824 GBP
Retailer 8£5,912 GBP
Retailer 10£5,920 GBP
Retailer 4£6,617 GBP
Retailer 12£7,993 GBP
NZ Jewellers£9,592 GBP

23 data points across 16 retailers

16 retailers£4,334 GBP to £9,592 GBP

A
Cheapest Retailer
-
£4,334 GBP
₹553,920 INR
A
Retailer 2
-
£4,574 GBP
$6,138 USD
View
Final sale: no returns
Retailer 3
-
£4,985 GBP
$6,690 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£5,002 GBP
$6,712 USD
View
A
Retailer 5
-
£5,084 GBP
$6,823 USD
View
Retailer 6
-
£5,294 GBP
$7,104 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
£5,362 GBP
View
A
Retailer 8
-
£5,556 GBP
View
A
Retailer 9
-
£5,589 GBP
$7,500 USD
View
A
Retailer 10
-
£5,735 GBP
$7,696 USD
View
Retailer 11
-
£5,824 GBP
$7,815 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£5,912 GBP
$7,934 USD
View
A
Retailer 13
-
£5,920 GBP
€7,566 EUR
View
B+
Retailer 14
-
£6,617 GBP
$8,880 USD
View
B+
Retailer 15
-
£7,993 GBP
View
Most Expensive
B
NZ Jewellers
24875a1d-6188-4197-9dc9-9e117889c7ac · Oct 30
£9,592 GBP
$12,872 USD
View
15 more retailers have this diamond
Prices start from £4,334 GBPSave up to £5,258 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
1.51ct Marquise
£4,334 GBP