CaratHunter
Plans
Oval|Natural|GIA

0.40ct J SI2 Oval Natural Diamond

GD • J/SI2 • GIA 7551857360

Certificate GIA 7551857360

Diamond specifications and retailer prices

From £175 GBP
SGD 316 SGD
As of October 31, 2026
Save £79 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £253 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 0.4ct natural oval diamond

This 0.4ct natural oval sits in the sub-half-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7551857360. Listed at 2 retailers as of October 31, 2026, with prices from £175 to £253, a £79 spread on the same certified stone. 77 Diamonds lists it at £253. 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

0.40
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551857360
Dimensions5.54 × 4.11 × 2.72 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather
Top View
5.54 mm4.11 mm0.40 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 7551857360
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.1%

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: Oct 31
Current: £253 GBP|Low: £175 GBP|High: £255 GBP|Avg: £205 GBP|+17.5%
77 Diamonds
Retailer 2
October 31, 2026
Retailer 2£175 GBP
77 Diamonds£253 GBP

38 data points across 2 retailers

2 retailers£175 GBP to £253 GBP

B+
Cheapest Retailer
-
£175 GBP
SGD 316 SGD
Most Expensive
B
77 Diamonds
OVCPCYNTSMFY · Oct 31
£253 GBP
View
1 more retailer has this diamond
Prices start from £175 GBPSave up to £79 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+
0.40ct Oval
£175 GBP