CaratHunter
Plans
Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 7556370906

Certificate GIA 7556370906

Diamond specifications and retailer prices

From £6,526 GBP
$8,758 USD
As of November 1, 2026
Save £5,091 GBP (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £11,618 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556370906. Listed at 12 retailers as of October 30, 2026, with prices from £6,526 to £11,618, a £5,091 spread on the same certified stone. NZ Jewellers lists it at £11,618. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556370906
Dimensions10.92 × 5.90 × 3.86 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather
Top View
10.92 mm5.90 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556370906
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 65.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £8,781 GBP|Low: £6,442 GBP|High: £11,018 GBP|Avg: £8,345 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£6,442 GBP
Retailer 8£6,526 GBP
Retailer 7£7,029 GBP
Retailer 2£7,565 GBP
Retailer 9£8,744 GBP
Retailer 1£8,781 GBP
Retailer 4£9,173 GBP
Retailer 6£9,937 GBP
Retailer 3£10,886 GBP

43 data points across 9 retailers

12 retailers£6,526 GBP to £11,618 GBP

B
Cheapest Retailer
-
£6,526 GBP
$8,758 USD
B
Retailer 2
-
£6,971 GBP
$9,354 USD
View
B
Retailer 3
-
£7,029 GBP
$9,432 USD
View
B
Retailer 4
-
£7,552 GBP
$10,134 USD
View
B
Retailer 5
-
£7,565 GBP
View
B
Retailer 6
-
£7,668 GBP
$10,290 USD
View
B
Retailer 7
-
£8,256 GBP
$11,079 USD
View
B
Retailer 8
-
£8,714 GBP
$11,693 USD
View
B
Retailer 9
-
£8,744 GBP
$11,734 USD
View
B
Retailer 10
-
£8,781 GBP
€11,223 EUR
View
B
Retailer 11
-
£10,886 GBP
View
Most Expensive
C
NZ Jewellers
105d20ca-77aa-4802-8629-5635102c1804 · Oct 30
£11,618 GBP
$15,590 USD
View
11 more retailers have this diamond
Prices start from £6,526 GBPSave up to £5,091 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
£6,526 GBP