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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5553045462

Certificate GIA 5553045462

Diamond specifications and retailer prices

From £5,326 GBP
SGD 9,658 SGD
As of November 1, 2026
Save £3,268 GBP (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £8,594 GBP at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5553045462. Listed at 13 retailers as of November 1, 2026, with prices from £5,326 to £8,594, a £3,268 spread on the same certified stone. Helzberg Diamonds lists it at £8,594. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.62°
Pavilion angle38.57°
OriginNatural
Grading LabGIA
CertificateGIA 5553045462
Dimensions11.04 × 5.95 × 3.64 mm
L/W Ratio1.86
Top View
11.04 mm5.95 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553045462
Side View
Table 60.0%Crown 41.62°Girdle: STK-VTKPavilion 38.57°Culet: NoneDepth 61.3%

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: Nov 1
Current: £8,594 GBP|Low: £5,326 GBP|High: £8,768 GBP|Avg: £6,596 GBP|-1.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£5,326 GBP
Retailer 7£5,444 GBP
Retailer 10£5,543 GBP
Retailer 8£5,635 GBP
Retailer 11£5,712 GBP
Retailer 5£5,789 GBP
Retailer 3£6,614 GBP
Retailer 12£6,671 GBP
Retailer 2£6,785 GBP
Retailer 4£6,788 GBP
Retailer 6£7,549 GBP
Helzberg Diamonds£8,594 GBP

30 data points across 12 retailers

13 retailers£5,326 GBP to £8,594 GBP

A
Cheapest Retailer
-
£5,326 GBP
SGD 9,658 SGD
A
Retailer 2
-
£5,444 GBP
$7,306 USD
View
A
Retailer 3
-
£5,543 GBP
SGD 10,052 SGD
View
A
Retailer 4
-
£5,635 GBP
$7,561 USD
View
A
Retailer 5
-
£5,712 GBP
$7,665 USD
View
A
Retailer 6
-
£5,789 GBP
View
A
Retailer 7
-
£6,614 GBP
$8,875 USD
View
A
Retailer 8
-
£6,671 GBP
$8,952 USD
View
A
Retailer 9
-
£6,785 GBP
€8,672 EUR
View
A
Retailer 10
-
£6,788 GBP
$9,110 USD
View
B+
Retailer 11
-
£7,309 GBP
$9,808 USD
View
B+
Retailer 12
-
£7,549 GBP
$10,130 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRLLLJGKLKMI · Nov 1
£8,594 GBP
$11,532 USD
View
12 more retailers have this diamond
Prices start from £5,326 GBPSave up to £3,268 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
£5,326 GBP