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Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

GD • E/SI1 • GIA 1499218609

Certificate GIA 1499218609

Diamond specifications and retailer prices

From £1,639 GBP
$2,196 USD
As of October 30, 2026
Save £488 GBP (23%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,127 GBP at Jared · As of October 30, 2026
View at Jared

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1499218609. Listed at 9 retailers as of October 30, 2026, with prices from £1,639 to £2,127, a £488 spread on the same certified stone. Jared lists it at £2,127. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1499218609
Dimensions8.95 × 5.06 × 3.29 mm
L/W Ratio1.77
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.95 mm5.06 mm0.90 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1499218609
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 65.1%

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 30
Current: £2,127 GBP|Low: £1,639 GBP|High: £2,336 GBP|Avg: £2,000 GBP|-8.9%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4£1,639 GBP
Retailer 9£1,677 GBP
Retailer 3£1,793 GBP
Retailer 2£1,939 GBP
Retailer 7£1,954 GBP
Retailer 5£2,060 GBP
Retailer 6£2,060 GBP
Retailer 8£2,126 GBP
Jared£2,127 GBP

44 data points across 9 retailers

9 retailers£1,639 GBP to £2,127 GBP

A
Cheapest Retailer
-
£1,639 GBP
$2,196 USD
Final sale: no returns
Retailer 2
-
£1,677 GBP
$2,246 USD
View
Price last confirmed 75 days ago
B+
Retailer 3
-
£1,793 GBP
$2,402 USD
View
B+
Retailer 4
-
£1,939 GBP
View
B+
Retailer 5
-
£1,954 GBP
$2,618 USD
View
B
Retailer 6
-
£2,060 GBP
$2,760 USD
View
B
Retailer 7
-
£2,060 GBP
$2,760 USD
View
B
Retailer 8
-
£2,126 GBP
SGD 3,849 SGD
View
Most Expensive
B
Jared
151121359 · Oct 30
£2,127 GBP
$2,850 USD
View
8 more retailers have this diamond
Prices start from £1,639 GBPSave up to £488 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
£1,639 GBP