Marquise|Natural|IGI

0.90ct J SI2 Marquise Natural Diamond

VG • J/SI2 • IGI 689598691

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 689598691

Diamond specifications and retailer prices

From £780 GBP
$1,045 USD
As of November 1, 2026
Save £1,210 GBP (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,137 GBP at Moon Ocean · As of September 30, 2026
View at Moon Ocean

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 689598691. Listed at 14 retailers as of October 30, 2026, with a 155% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 689598691
Dimensions9.60 × 5.05 × 3.23 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Top View
9.60 mm5.05 mm0.90 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 689598691
Side View
Table 64.0%Crown 33°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,137 GBP|Low: £780 GBP|High: £2,138 GBP|Avg: £1,133 GBP|+1.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 9£780 GBP
Retailer 7£781 GBP
Retailer 11£816 GBP
Retailer 14£816 GBP
Retailer 15£845 GBP
Retailer 10£847 GBP
Retailer 3£870 GBP
Retailer 4£916 GBP
Retailer 13£941 GBP
Retailer 2£1,143 GBP
Retailer 5£1,165 GBP
Retailer 6£1,318 GBP
Retailer 8£1,502 GBP
Retailer 12£1,990 GBP
Moon Ocean£2,137 GBP

30 data points across 15 retailers

14 retailers£780 GBP to £1,990 GBP

B+
Cheapest Retailer
-
£780 GBP
$1,045 USD
B+
Retailer 2
-
£781 GBP
$1,047 USD
View
B+
Retailer 3
-
£816 GBP
$1,093 USD
View
B+
Retailer 4
-
£816 GBP
$1,093 USD
View
B+
Retailer 5
-
£845 GBP
$1,133 USD
View
B+
Retailer 6
-
£847 GBP
$1,135 USD
View
B+
Retailer 7
-
£870 GBP
$1,166 USD
View
B+
Retailer 8
-
£916 GBP
$1,227 USD
View
Retailer 9
-
£941 GBP
$1,261 USD
View
Price last confirmed 62 days ago
B+
Retailer 10
-
£941 GBP
$1,261 USD
View
B
Retailer 11
-
£1,143 GBP
€1,459 EUR
View
B
Retailer 12
-
£1,502 GBP
View
C
Retailer 13
-
£1,990 GBP
$2,666 USD
View
Most Expensive
Moon Ocean
NVN-B16C4A336-691 · Sep 30
£2,137 GBP
View
Price last confirmed 33 days ago
13 more retailers have this diamond
Prices start from £780 GBPSave up to £1,210 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.

B+
0.90ct Marquise
£780 GBP