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Asscher|Natural|GIA

0.51ct K SI1 Asscher Natural Diamond

EX • K/SI1 • GIA 6375642908

Certificate GIA 6375642908

Diamond specifications and retailer prices

From £363 GBP
As of November 6, 2026
Save £622 GBP (63%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £985 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural asscher diamond

This 0.51ct natural asscher sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6375642908. Listed at 12 retailers as of November 4, 2026, with prices from £363 to £985, a £622 spread on the same certified stone. MOH London lists it at £985. 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

0.51
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6375642908
Dimensions5.58 × 4.04 × 2.60 mm
L/W Ratio1.38
Top View
5.58 mm4.04 mm0.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6375642908
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.2%

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: Nov 6
Current: £985 GBP|Low: £363 GBP|High: £992 GBP|Avg: £529 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 3£363 GBP
Retailer 12£380 GBP
Retailer 13£381 GBP
Retailer 7£444 GBP
Retailer 10£460 GBP
Retailer 4£476 GBP
Retailer 8£518 GBP
Retailer 2£521 GBP
Retailer 11£528 GBP
Retailer 5£572 GBP
Retailer 6£630 GBP
Retailer 9£659 GBP
MOH London£985 GBP

30 data points across 13 retailers

12 retailers£363 GBP to £985 GBP

A
Cheapest Retailer
-
£363 GBP
A
Retailer 2
-
£381 GBP
View
B+
Retailer 3
-
£444 GBP
View
Retailer 4
-
£460 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£518 GBP
View
B+
Retailer 6
-
£521 GBP
View
B
Retailer 7
-
£525 GBP
View
B
Retailer 8
-
£528 GBP
View
B
Retailer 9
-
£572 GBP
View
B
Retailer 10
-
£630 GBP
View
B
Retailer 11
-
£659 GBP
View
Most Expensive
B
MOH London
C676415B3 · Nov 4
£985 GBP
View
11 more retailers have this diamond
Prices start from £363 GBPSave up to £622 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
0.51ct Asscher
£363 GBP