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Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2554644256

Certificate GIA 2554644256

Diamond specifications and retailer prices

From £1,842 GBP
SGD 3,335 SGD
As of October 29, 2026
Save £1,594 GBP (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,436 GBP at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2554644256. Listed at 13 retailers as of October 29, 2026, with prices from £1,842 to £3,436, a £1,594 spread on the same certified stone. Helzberg Diamonds lists it at £3,436. 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

0.90
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.81°
Pavilion angle40.27°
OriginNatural
Grading LabGIA
CertificateGIA 2554644256
Dimensions9.20 × 4.96 × 3.24 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.20 mm4.96 mm0.90 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554644256
Side View
Table 59.0%Crown 40.81°Girdle: THN-VTKPavilion 40.27°Culet: NoneDepth 65.3%

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: Oct 29
Current: £3,436 GBP|Low: £1,842 GBP|High: £3,509 GBP|Avg: £2,437 GBP|-2.1%
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
October 31, 2026
Retailer 9£1,842 GBP
Retailer 12£1,967 GBP
Retailer 8£1,985 GBP
Retailer 10£2,000 GBP
Retailer 6£2,152 GBP
Retailer 4£2,178 GBP
Retailer 11£2,341 GBP
Retailer 7£2,414 GBP
Retailer 3£2,422 GBP
Retailer 2£2,508 GBP
Retailer 5£3,049 GBP
Retailer 13£3,229 GBP
Helzberg Diamonds£3,436 GBP

39 data points across 13 retailers

13 retailers£1,842 GBP to £3,436 GBP

A
Cheapest Retailer
-
£1,842 GBP
SGD 3,335 SGD
B+
Retailer 2
-
£1,967 GBP
$2,635 USD
View
B+
Retailer 3
-
£1,985 GBP
$2,660 USD
View
B+
Retailer 4
-
£2,000 GBP
$2,680 USD
View
B+
Retailer 5
-
£2,152 GBP
View
B+
Retailer 6
-
£2,178 GBP
SGD 3,943 SGD
View
B
Retailer 7
-
£2,341 GBP
$3,137 USD
View
B+
Retailer 8
-
£2,414 GBP
€3,081 EUR
View
B+
Retailer 9
-
£2,422 GBP
$3,245 USD
View
B+
Retailer 10
-
£2,508 GBP
$3,360 USD
View
B
Retailer 11
-
£3,049 GBP
$4,085 USD
View
B
Retailer 12
-
£3,229 GBP
$4,327 USD
View
Most Expensive
B
Helzberg Diamonds
XZRILLKMKKILM · Oct 31
£3,436 GBP
$4,604 USD
View
12 more retailers have this diamond
Prices start from £1,842 GBPSave up to £1,594 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
0.90ct Marquise
£1,842 GBP