Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 6555394275

Certificate GIA 6555394275

Diamond specifications and retailer prices

From £2,017 GBP
A$4,158 AUD
As of November 2, 2026
11 retailers carry this diamond
Most expensive: £3,799 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded D 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 6555394275. Listed at 11 retailers as of November 2, 2026. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555394275
Dimensions9.18 × 4.95 × 3.26 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
9.18 mm4.95 mm0.90 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555394275
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £1,723 GBP|Low: £1,318 GBP|High: £3,325 GBP|Avg: £1,980 GBP|+0.9%
Retailer 1
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 13, 2026
Retailer 12£1,357 GBP
Retailer 8£1,623 GBP
Retailer 3£1,658 GBP
Retailer 6£1,681 GBP
Retailer 1£1,723 GBP
Retailer 13£1,725 GBP
Retailer 2£1,803 GBP
Retailer 15£1,855 GBP
Retailer 4£1,857 GBP
Retailer 14£1,905 GBP
Retailer 9£2,200 GBP
Retailer 5£2,224 GBP
Retailer 10£2,724 GBP
Retailer 7£2,738 GBP
Retailer 11£3,315 GBP

23 data points across 15 retailers

11 retailers

Retailer 1
-
£1,357 GBP
HK$14,200 HKD
Price last confirmed 18 days ago
Retailer 2
-
£1,595 GBP
A$3,288 AUD
View
Price last confirmed 24 days ago
Retailer 3
-
£1,623 GBP
€2,071 EUR
View
Price last confirmed 20 days ago
Retailer 4
-
£1,681 GBP
$2,252 USD
View
Price last confirmed 32 days ago
Retailer 5
-
£1,723 GBP
View
Price last confirmed 20 days ago
Retailer 6
-
£1,905 GBP
SGD 3,450 SGD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£2,017 GBP
A$4,158 AUD
View
Retailer 8
-
£2,224 GBP
A$4,585 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
£2,724 GBP
ZAR 58,973 ZAR
View
Price last confirmed 21 days ago
Retailer 10
-
£3,315 GBP
View
Price last confirmed 21 days ago
Most Expensive
NZ Jewellers
0b1e8bb9-9c8b-4c34-a15a-0079cc762fd0 · Sep 25
£3,799 GBP
$5,090 USD
View
Price last confirmed 38 days ago
10 more retailers have this diamond
Prices start from £2,017 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
£2,017 GBP