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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 3555246295

Certificate GIA 3555246295

Diamond specifications and retailer prices

From £7,459 GBP
$10,009 USD
As of November 1, 2026
Save £5,940 GBP (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £13,399 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555246295. Listed at 19 retailers as of October 30, 2026, with prices from £7,459 to £13,399, a £5,940 spread on the same certified stone. NZ Jewellers lists it at £13,399. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.76°
Pavilion angle37.56°
OriginNatural
Grading LabGIA
CertificateGIA 3555246295
Dimensions11.23 × 6.00 × 3.59 mm
L/W Ratio1.87
Top View
11.23 mm6.00 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555246295
Side View
Table 60.0%Crown 40.76°Girdle: STK-VTKPavilion 37.56°Culet: NoneDepth 59.8%

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 1
Current: £13,399 GBP|Low: £6,699 GBP|High: £13,399 GBP|Avg: £9,619 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
November 2, 2026
Retailer 3£7,459 GBP
Retailer 10£8,039 GBP
Retailer 13£8,039 GBP
Retailer 6£8,690 GBP
Retailer 12£8,709 GBP
Retailer 9£8,737 GBP
Retailer 11£8,843 GBP
Retailer 5£9,382 GBP
Retailer 2£9,676 GBP
Retailer 4£10,049 GBP
Retailer 8£11,811 GBP
Retailer 7£12,555 GBP
NZ Jewellers£13,399 GBP

45 data points across 13 retailers

19 retailers£7,459 GBP to £13,399 GBP

B+
Cheapest Retailer
-
£7,459 GBP
$10,009 USD
B+
Retailer 2
-
£7,936 GBP
$10,650 USD
View
B+
Retailer 3
-
£8,039 GBP
$10,788 USD
View
B
Retailer 4
-
£8,039 GBP
$10,788 USD
View
Final sale: no returns
B
Retailer 5
-
£8,106 GBP
$10,878 USD
View
B+
Retailer 6
-
£8,690 GBP
View
B+
Retailer 7
-
£8,709 GBP
$11,687 USD
View
Retailer 8
-
£8,737 GBP
A$18,037 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
£8,843 GBP
$11,867 USD
View
B
Retailer 10
-
£9,382 GBP
$12,590 USD
View
B
Retailer 11
-
£9,382 GBP
$12,590 USD
View
B
Retailer 12
-
£9,575 GBP
$12,849 USD
View
B
Retailer 13
-
£9,676 GBP
€12,366 EUR
View
B
Retailer 14
-
£9,695 GBP
$13,010 USD
View
B
Retailer 15
-
£10,049 GBP
$13,485 USD
View
Retailer 16
-
£10,576 GBP
$14,192 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
£11,811 GBP
ZAR 256,042 ZAR
View
B
Retailer 18
-
£12,555 GBP
View
Most Expensive
B
NZ Jewellers
d9c19b02-f416-4506-8b76-2211e60f9434 · Oct 30
£13,399 GBP
$17,980 USD
View
18 more retailers have this diamond
Prices start from £7,459 GBPSave up to £5,940 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+
1.51ct Marquise
£7,459 GBP