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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6561292606

Certificate GIA 6561292606

Diamond specifications and retailer prices

From £5,865 GBP
₹749,572 INR
As of November 2, 2026
Save £4,902 GBP (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £10,767 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561292606. Listed at 22 retailers as of October 30, 2026, with prices from £5,865 to £10,767, a £4,902 spread on the same certified stone. NZ Jewellers lists it at £10,767. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6561292606
Dimensions11.40 × 5.99 × 3.60 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity
Top View
11.40 mm5.99 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6561292606
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.0%

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: £10,767 GBP|Low: £5,853 GBP|High: £10,767 GBP|Avg: £7,676 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
November 2, 2026
Retailer 2£5,865 GBP
Retailer 4£6,546 GBP
Retailer 12£7,004 GBP
Retailer 8£7,061 GBP
Retailer 17£7,096 GBP
Retailer 15£7,131 GBP
Retailer 16£7,131 GBP
Retailer 10£7,279 GBP
Retailer 6£7,444 GBP
Retailer 5£7,725 GBP
Retailer 3£7,845 GBP
Retailer 9£7,918 GBP
Retailer 11£8,138 GBP
Retailer 7£8,914 GBP
Retailer 14£9,491 GBP
Retailer 13£10,089 GBP
NZ Jewellers£10,767 GBP

26 data points across 17 retailers

22 retailers£5,865 GBP to £10,767 GBP

A
Cheapest Retailer
-
£5,865 GBP
₹749,572 INR
A
Retailer 2
-
£5,947 GBP
$7,981 USD
View
A
Retailer 3
-
£6,041 GBP
A$12,472 AUD
View
B+
Retailer 4
-
£6,546 GBP
$8,785 USD
View
B+
Retailer 5
-
£6,617 GBP
$8,879 USD
View
B+
Retailer 6
-
£6,810 GBP
$9,138 USD
View
B+
Retailer 7
-
£7,004 GBP
View
B+
Retailer 8
-
£7,061 GBP
$9,475 USD
View
Retailer 9
-
£7,096 GBP
A$14,650 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£7,131 GBP
$9,569 USD
View
Final sale: no returns
B+
Retailer 11
-
£7,131 GBP
$9,570 USD
View
B+
Retailer 12
-
£7,279 GBP
View
B+
Retailer 13
-
£7,444 GBP
$9,990 USD
View
B+
Retailer 14
-
£7,716 GBP
$10,354 USD
View
B+
Retailer 15
-
£7,725 GBP
$10,367 USD
View
B+
Retailer 16
-
£7,845 GBP
$10,527 USD
View
B
Retailer 17
-
£7,918 GBP
$10,626 USD
View
B+
Retailer 18
-
£8,138 GBP
€10,401 EUR
View
B
Retailer 19
-
£8,914 GBP
$11,962 USD
View
B
Retailer 20
-
£9,491 GBP
ZAR 205,758 ZAR
View
B
Retailer 21
-
£10,089 GBP
View
Most Expensive
B
NZ Jewellers
41d27a8a-ad8c-4bdf-a0bc-d2fa15a3f87a · Oct 30
£10,767 GBP
$14,449 USD
View
21 more retailers have this diamond
Prices start from £5,865 GBPSave up to £4,902 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
£5,865 GBP