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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 7568010268

Certificate GIA 7568010268

Diamond specifications and retailer prices

From £5,264 GBP
SGD 9,532 SGD
As of November 1, 2026
Save £3,230 GBP (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £8,494 GBP at Helzberg Diamonds · As of November 2, 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 7568010268. Listed at 13 retailers as of November 1, 2026, with prices from £5,264 to £8,494, a £3,230 spread on the same certified stone. Helzberg Diamonds lists it at £8,494. 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
FluorescenceFaint
Crown angle40.29°
Pavilion angle40.31°
OriginNatural
Grading LabGIA
CertificateGIA 7568010268
Dimensions10.87 × 5.85 × 3.82 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.87 mm5.85 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7568010268
Side View
Table 60.0%Crown 40.29°Girdle: THK-VTKPavilion 40.31°Culet: NoneDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £8,494 GBP|Low: £5,264 GBP|High: £8,907 GBP|Avg: £6,574 GBP|-4.6%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 8£5,264 GBP
Retailer 5£5,383 GBP
Retailer 10£5,478 GBP
Retailer 11£5,569 GBP
Retailer 9£5,645 GBP
Retailer 6£5,722 GBP
Retailer 3£5,806 GBP
Retailer 4£6,541 GBP
Retailer 12£6,596 GBP
Retailer 2£6,705 GBP
Retailer 13£6,712 GBP
Retailer 7£7,460 GBP
Helzberg Diamonds£8,494 GBP

28 data points across 13 retailers

13 retailers£5,264 GBP to £8,494 GBP

A
Cheapest Retailer
-
£5,264 GBP
SGD 9,532 SGD
A
Retailer 2
-
£5,383 GBP
$7,213 USD
View
A
Retailer 3
-
£5,478 GBP
SGD 9,919 SGD
View
A
Retailer 4
-
£5,569 GBP
$7,462 USD
View
A
Retailer 5
-
£5,645 GBP
$7,564 USD
View
A
Retailer 6
-
£5,722 GBP
View
A
Retailer 7
-
£5,806 GBP
$7,780 USD
View
A
Retailer 8
-
£6,541 GBP
$8,764 USD
View
A
Retailer 9
-
£6,596 GBP
$8,838 USD
View
A
Retailer 10
-
£6,705 GBP
€8,556 EUR
View
A
Retailer 11
-
£6,712 GBP
$8,994 USD
View
B+
Retailer 12
-
£7,460 GBP
$9,996 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRNLMOGHGIMO · Nov 2
£8,494 GBP
$11,381 USD
View
12 more retailers have this diamond
Prices start from £5,264 GBPSave up to £3,230 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
£5,264 GBP