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Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2548785636

Certificate GIA 2548785636

Diamond specifications and retailer prices

From £7,669 GBP
$10,292 USD
As of October 28, 2026
Save £6,469 GBP (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £14,138 GBP at NZ Jewellers · As of October 27, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548785636. Listed at 15 retailers as of October 27, 2026, with prices from £7,669 to £14,138, a £6,469 spread on the same certified stone. NZ Jewellers lists it at £14,138. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2548785636
Dimensions11.46 × 5.96 × 3.77 mm
L/W Ratio1.92
Top View
11.46 mm5.96 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2548785636
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.2%

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: Oct 28
Current: £14,138 GBP|Low: £7,240 GBP|High: £14,138 GBP|Avg: £9,690 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 29, 2026
Retailer 14£7,240 GBP
Retailer 19£7,669 GBP
Retailer 12£7,812 GBP
Retailer 17£8,130 GBP
Retailer 20£8,266 GBP
Retailer 16£8,483 GBP
Retailer 10£8,801 GBP
Retailer 4£8,886 GBP
Retailer 18£9,228 GBP
Retailer 2£9,266 GBP
Retailer 6£9,473 GBP
Retailer 21£9,912 GBP
Retailer 9£9,915 GBP
Retailer 5£9,956 GBP
Retailer 8£9,956 GBP
Retailer 7£10,284 GBP
Retailer 15£10,320 GBP
Retailer 3£10,452 GBP
Retailer 11£11,238 GBP
Retailer 13£13,320 GBP
NZ Jewellers£14,138 GBP

14 data points across 21 retailers

15 retailers£7,669 GBP to £14,138 GBP

A
Cheapest Retailer
-
£7,669 GBP
$10,292 USD
B+
Retailer 2
-
£8,130 GBP
CA$15,154 CAD
View
B+
Retailer 3
-
£8,266 GBP
$11,093 USD
View
B+
Retailer 4
-
£8,886 GBP
$11,925 USD
View
B+
Retailer 5
-
£9,228 GBP
$12,384 USD
View
B+
Retailer 6
-
£9,266 GBP
View
B
Retailer 7
-
£9,473 GBP
$12,712 USD
View
B+
Retailer 8
-
£9,912 GBP
$13,301 USD
View
B+
Retailer 9
-
£9,956 GBP
$13,360 USD
View
B+
Retailer 10
-
£9,956 GBP
$13,360 USD
View
B+
Retailer 11
-
£10,284 GBP
$13,800 USD
View
B+
Retailer 12
-
£10,320 GBP
€13,189 EUR
View
B
Retailer 13
-
£10,452 GBP
$14,026 USD
View
B
Retailer 14
-
£13,320 GBP
View
Most Expensive
B
NZ Jewellers
be492634-6ba2-4243-8d8b-db70219f853b · Oct 27
£14,138 GBP
$18,973 USD
View
14 more retailers have this diamond
Prices start from £7,669 GBPSave up to £6,469 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
£7,669 GBP