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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2544827819

Certificate GIA 2544827819

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)
20 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544827819. Listed at 20 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. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544827819
Dimensions11.54 × 6.17 × 3.72 mm
L/W Ratio1.87
Top View
11.54 mm6.17 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544827819
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.3%

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: £9,058 GBP|Low: £8,617 GBP|High: £12,706 GBP|Avg: £9,936 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3£8,690 GBP
Retailer 6£8,737 GBP
Retailer 7£8,843 GBP
Retailer 1£9,058 GBP
Retailer 2£9,676 GBP
Retailer 5£11,811 GBP
Retailer 4£12,555 GBP

36 data points across 7 retailers

20 retailers£7,459 GBP to £13,399 GBP

B+
Cheapest Retailer
-
£7,459 GBP
$10,009 USD
B+
Retailer 2
-
£7,503 GBP
$10,068 USD
View
B+
Retailer 3
-
£7,936 GBP
$10,650 USD
View
B+
Retailer 4
-
£8,039 GBP
$10,788 USD
View
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
-
£8,911 GBP
$11,958 USD
View
B+
Retailer 11
-
£9,058 GBP
View
B
Retailer 12
-
£9,382 GBP
$12,590 USD
View
B
Retailer 13
-
£9,382 GBP
$12,590 USD
View
B
Retailer 14
-
£9,676 GBP
€12,366 EUR
View
B
Retailer 15
-
£9,695 GBP
$13,010 USD
View
B
Retailer 16
-
£10,049 GBP
$13,485 USD
View
Retailer 17
-
£10,576 GBP
$14,192 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
£11,811 GBP
ZAR 256,042 ZAR
View
B
Retailer 19
-
£12,555 GBP
View
Most Expensive
B
NZ Jewellers
cddb2d76-c4a3-4bb6-8b7a-65550c87b1c7 · Oct 30
£13,399 GBP
$17,980 USD
View
19 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