Marquise|Natural|GIA

0.90ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 2231765227

Certificate GIA 2231765227

Diamond specifications and retailer prices

From £1,585 GBP
$2,127 USD
As of November 1, 2026
Save £2,465 GBP (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £5,013 GBP at Moon Ocean · As of November 2, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2231765227. Listed at 12 retailers as of October 30, 2026, with a 156% 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.91°
Pavilion angle38.25°
OriginNatural
Grading LabGIA
CertificateGIA 2231765227
Dimensions10.89 × 5.02 × 2.81 mm
L/W Ratio2.17
Girdle conditionVery Thick
Key to symbols
Twinning Wisp
Top View
10.89 mm5.02 mm0.90 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231765227
Side View
Table 59.0%Crown 30.91°GirdlePavilion 38.25°Culet: NoneDepth 55.9%

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: £5,013 GBP|Low: £1,585 GBP|High: £5,078 GBP|Avg: £2,595 GBP|-1.3%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£1,585 GBP
Retailer 7£1,836 GBP
Retailer 6£2,005 GBP
Retailer 3£2,053 GBP
Retailer 2£2,419 GBP
Retailer 4£3,413 GBP
Moon Ocean£5,013 GBP

42 data points across 7 retailers

12 retailers£1,585 GBP to £4,050 GBP

B+
Cheapest Retailer
-
£1,585 GBP
$2,127 USD
B
Retailer 2
-
£1,755 GBP
$2,355 USD
View
B
Retailer 3
-
£1,755 GBP
$2,355 USD
View
B
Retailer 4
-
£1,791 GBP
$2,404 USD
View
B
Retailer 5
-
£1,836 GBP
$2,464 USD
View
B
Retailer 6
-
£2,005 GBP
$2,690 USD
View
B
Retailer 7
-
£2,025 GBP
$2,718 USD
View
B
Retailer 8
-
£2,053 GBP
View
B
Retailer 9
-
£2,419 GBP
€3,092 EUR
View
B
Retailer 10
-
£3,413 GBP
View
C
Retailer 11
-
£4,050 GBP
$5,435 USD
View
Most Expensive
Moon Ocean
NVN-892AB1B36-227 · Nov 2
£5,013 GBP
View
Price under review
11 more retailers have this diamond
Prices start from £1,585 GBPSave up to £2,465 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
£1,585 GBP