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Round|Lab Grown|GIA

0.31ct D SI1 Round Lab Grown Diamond

VG • D/SI1 • GIA 5453808362

Certificate GIA 5453808362

Diamond specifications and retailer prices

From £101 GBP
$135 USD
As of October 28, 2026
Save £502 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £603 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5453808362. Listed at 14 retailers as of October 26, 2026, with prices from £101 to £603, a £502 spread on the same certified stone. MOH London lists it at £603. 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

0.31
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginLab Grown
Grading LabGIA
CertificateGIA 5453808362
Dimensions4.34 × 4.31 × 2.73 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.34 mm4.31 mm0.31 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5453808362
Side View
Table 57.0%Crown 35°Girdle: ThickPavilion 41.4°Culet: NoneDepth 63.1%

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: £603 GBP|Low: £99 GBP|High: £606 GBP|Avg: £240 GBP|+0.8%
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
October 30, 2026
Retailer 7£101 GBP
Retailer 4£104 GBP
Retailer 13£116 GBP
Retailer 8£120 GBP
Retailer 10£129 GBP
Retailer 12£129 GBP
Retailer 2£198 GBP
Retailer 11£240 GBP
Retailer 6£255 GBP
Retailer 9£291 GBP
Retailer 5£414 GBP
Retailer 3£456 GBP
MOH London£603 GBP

42 data points across 13 retailers

14 retailers£101 GBP to £603 GBP

A
Cheapest Retailer
-
£101 GBP
$135 USD
A
Retailer 2
-
£104 GBP
$139 USD
View
A
Retailer 3
-
£116 GBP
$156 USD
View
Final sale: no returns
A
Retailer 4
-
£120 GBP
$161 USD
View
A
Retailer 5
-
£129 GBP
$173 USD
View
A
Retailer 6
-
£129 GBP
$173 USD
View
B
Retailer 7
-
£198 GBP
View
B
Retailer 8
-
£240 GBP
$322 USD
View
B
Retailer 9
-
£255 GBP
€325 EUR
View
B
Retailer 10
-
£280 GBP
View
B
Retailer 11
-
£291 GBP
$390 USD
View
B
Retailer 12
-
£414 GBP
$555 USD
View
B
Retailer 13
-
£456 GBP
$611 USD
View
Most Expensive
B
MOH London
5453808362 · Oct 26
£603 GBP
View
13 more retailers have this diamond
Prices start from £101 GBPSave up to £502 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
0.31ct Round
£101 GBP