Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2557053736

Certificate GIA 2557053736

Diamond specifications and retailer prices

From £8,610 GBP
As of October 28, 2026
14 retailers carry this diamond
Most expensive: £12,072 GBP at NZ Jewellers · As of October 21, 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 2557053736. Listed at 14 retailers as of October 28, 2026. 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
FluorescenceMedium
Crown angle40.83°
Pavilion angle39.35°
OriginNatural
Grading LabGIA
CertificateGIA 2557053736
Dimensions11.09 × 5.97 × 3.68 mm
L/W Ratio1.86
Top View
11.09 mm5.97 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557053736
Side View
Table 60.0%Crown 40.83°Girdle: THN-VTKPavilion 39.35°Culet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £12,072 GBP|Low: £7,169 GBP|High: £12,072 GBP|Avg: £8,911 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
October 28, 2026
Retailer 4£7,169 GBP
Retailer 11£7,243 GBP
Retailer 12£7,847 GBP
Retailer 6£7,966 GBP
Retailer 10£7,968 GBP
Retailer 7£8,159 GBP
Retailer 2£8,610 GBP
Retailer 3£9,054 GBP
Retailer 5£9,063 GBP
Retailer 9£10,514 GBP
Retailer 8£11,373 GBP
NZ Jewellers£12,072 GBP

38 data points across 12 retailers

14 retailers

Retailer 1
-
£6,721 GBP
$9,019 USD
Price last confirmed 10 days ago
Retailer 2
-
£7,169 GBP
$9,620 USD
View
Price last confirmed 10 days ago
Retailer 3
-
£7,243 GBP
$9,720 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£7,304 GBP
$9,801 USD
View
Price last confirmed 11 days ago
Retailer 5
-
£7,847 GBP
$10,530 USD
View
Price last confirmed 11 days ago
Retailer 6
-
£7,966 GBP
A$16,445 AUD
View
Price last confirmed 10 days ago
Retailer 7
-
£7,968 GBP
$10,692 USD
View
Price last confirmed 16 days ago
Retailer 8
-
£8,305 GBP
$11,145 USD
View
Price last confirmed 12 days ago
B
Retailer 9
-
£8,610 GBP
View
Retailer 10
-
£9,054 GBP
$12,150 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£9,531 GBP
$12,790 USD
View
Price last confirmed 10 days ago
Retailer 12
-
£10,514 GBP
ZAR 227,926 ZAR
View
Price last confirmed 16 days ago
Retailer 13
-
£11,373 GBP
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
669feccd-75f5-4c5a-9ddc-19dd91e4f013 · Oct 21
£12,072 GBP
$16,200 USD
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from £8,610 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
£8,610 GBP