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Marquise|Natural|GIA

1.01ct L SI1 Marquise Natural Diamond

EX • L/SI1 • GIA 3555909888

Certificate GIA 3555909888

Diamond specifications and retailer prices

From £943 GBP
As of November 4, 2026
Save £546 GBP (37%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,489 GBP at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-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 3555909888. Listed at 7 retailers as of November 3, 2026, with prices from £943 to £1,489, a £546 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,489. 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

1.01
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle39.25°
Pavilion angle38.95°
OriginNatural
Grading LabGIA
CertificateGIA 3555909888
Dimensions10.15 × 5.15 × 3.20 mm
L/W Ratio1.97
Culet sizeNone
Top View
10.15 mm5.15 mm1.01 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3555909888
Side View
Table 58.0%Crown 39.25°Girdle: STK-THKPavilion 38.95°Culet: NDepth 62.2%

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 4
Current: £1,331 GBP|Low: £943 GBP|High: £1,570 GBP|Avg: £1,234 GBP|+29.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 6, 2026
Retailer 6£943 GBP
Retailer 5£1,127 GBP
Retailer 3£1,139 GBP
Retailer 4£1,281 GBP
Retailer 2£1,305 GBP
Retailer 1£1,331 GBP
Wholesale Diamonds Direct£1,489 GBP

43 data points across 7 retailers

7 retailers£943 GBP to £1,489 GBP

A
Cheapest Retailer
-
£943 GBP
B+
Retailer 2
-
£1,127 GBP
View
B+
Retailer 3
-
£1,139 GBP
View
B+
Retailer 4
-
£1,281 GBP
View
B+
Retailer 5
-
£1,305 GBP
View
B
Retailer 6
-
£1,331 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
354609686 · Nov 3
£1,489 GBP
$2,004 USD
View
6 more retailers have this diamond
Prices start from £943 GBPSave up to £546 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
1.01ct Marquise
£943 GBP