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Marquise|Natural|GIA

1.51ct L SI1 Marquise Natural Diamond

EX • L/SI1 • GIA 2536733744

Certificate GIA 2536733744

Diamond specifications and retailer prices

From £2,111 GBP
As of November 4, 2026
Save £1,098 GBP (34%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,210 GBP at 77 Diamonds · As of November 5, 2026
View at 77 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2536733744. Listed at 5 retailers as of November 4, 2026, with prices from £2,111 to £3,210, a £1,098 spread on the same certified stone. 77 Diamonds lists it at £3,210. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536733744
Dimensions11.08 × 5.94 × 3.83 mm
L/W Ratio1.87
Top View
11.08 mm5.94 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2536733744
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £3,210 GBP|Low: £2,143 GBP|High: £3,254 GBP|Avg: £2,772 GBP|+1.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4£2,143 GBP
Retailer 3£2,708 GBP
Retailer 2£3,028 GBP
77 Diamonds£3,210 GBP

35 data points across 4 retailers

5 retailers£2,111 GBP to £3,210 GBP

A
Cheapest Retailer
-
£2,111 GBP
A
Retailer 2
-
£2,143 GBP
View
B
Retailer 3
-
£2,708 GBP
View
B
Retailer 4
-
£3,028 GBP
View
Most Expensive
B
77 Diamonds
MQMBHWKSBE25 · Nov 5
£3,210 GBP
View
4 more retailers have this diamond
Prices start from £2,111 GBPSave up to £1,098 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
£2,111 GBP