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Marquise|Natural|IGI

1.51ct E SI2 Marquise Natural Diamond

VG • E/SI2 • IGI 830653179

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 830653179

Diamond specifications and retailer prices

From £4,432 GBP
SGD 7,976 SGD
As of October 29, 2026
Save £3,426 GBP (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,858 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 830653179. Listed at 8 retailers as of October 27, 2026, with prices from £4,432 to £7,858, a £3,426 spread on the same certified stone. Wholesale Diamonds Direct lists it at £7,858. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle38.1°
OriginNatural
Grading LabIGI
CertificateIGI 830653179
Dimensions12.37 × 5.77 × 3.45 mm
L/W Ratio2.14
Girdle conditionFaceted
Top View
12.37 mm5.77 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830653179
Side View
Table 60.0%Crown 39.7°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 59.8%

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 29
Current: £5,424 GBP|Low: £4,432 GBP|High: £7,858 GBP|Avg: £5,547 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 28, 2026
Retailer 3£4,432 GBP
Retailer 2£4,502 GBP
Retailer 5£4,506 GBP
Retailer 4£4,608 GBP
Retailer 7£5,358 GBP
Retailer 1£5,424 GBP
Retailer 6£6,990 GBP
Wholesale Diamonds Direct£7,858 GBP

15 data points across 8 retailers

8 retailers£4,432 GBP to £7,858 GBP

A
Cheapest Retailer
-
£4,432 GBP
SGD 7,976 SGD
A
Retailer 2
-
£4,502 GBP
$5,995 USD
View
A
Retailer 3
-
£4,506 GBP
$6,000 USD
View
A
Retailer 4
-
£4,608 GBP
$6,136 USD
View
A
Retailer 5
-
£5,358 GBP
$7,135 USD
View
A
Retailer 6
-
£5,424 GBP
€6,879 EUR
View
B+
Retailer 7
-
£6,990 GBP
$9,309 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
611240292 · Oct 27
£7,858 GBP
$10,464 USD
View
7 more retailers have this diamond
Prices start from £4,432 GBPSave up to £3,426 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
£4,432 GBP