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Asscher|Natural|GIA

0.90ct D SI1 Asscher Natural Diamond

EX • D/SI1 • GIA 6511420005

Certificate GIA 6511420005

Diamond specifications and retailer prices

From £915 GBP
$1,218 USD
As of October 28, 2026
Save £1,004 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,919 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.9ct natural asscher diamond

This 0.9ct natural asscher sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511420005. Listed at 10 retailers as of October 26, 2026, with prices from £915 to £1,919, a £1,004 spread on the same certified stone. MOH London lists it at £1,919. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.90
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6511420005
Dimensions6.71 × 4.75 × 3.23 mm
L/W Ratio1.41
Top View
6.71 mm4.75 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6511420005
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.1%

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 28
Current: £1,919 GBP|Low: £864 GBP|High: £1,998 GBP|Avg: £1,351 GBP|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 7£915 GBP
Retailer 6£954 GBP
Retailer 9£1,099 GBP
Retailer 2£1,220 GBP
Retailer 4£1,278 GBP
Retailer 10£1,351 GBP
Retailer 8£1,470 GBP
Retailer 3£1,522 GBP
Retailer 5£1,598 GBP
MOH London£1,919 GBP

44 data points across 10 retailers

10 retailers£915 GBP to £1,919 GBP

A
Cheapest Retailer
-
£915 GBP
$1,218 USD
Final sale: no returns
A
Retailer 2
-
£954 GBP
$1,270 USD
View
A
Retailer 3
-
£1,099 GBP
$1,464 USD
View
A
Retailer 4
-
£1,220 GBP
View
A
Retailer 5
-
£1,278 GBP
View
B+
Retailer 6
-
£1,351 GBP
A$2,768 AUD
View
Retailer 7
-
£1,470 GBP
A$3,013 AUD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£1,522 GBP
€1,930 EUR
View
B+
Retailer 9
-
£1,598 GBP
ZAR 34,385 ZAR
View
Most Expensive
B+
MOH London
461E64453 · Oct 26
£1,919 GBP
View
9 more retailers have this diamond
Prices start from £915 GBPSave up to £1,004 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 Asscher
£915 GBP