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Round|Lab Grown|IGI

0.53ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG681525642

Shape and cutting style on the report: Round brilliant

Certificate IGI LG681525642

Diamond specifications and retailer prices

From £71 GBP
$95 USD
As of October 29, 2026
Save £580 GBP (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £651 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.53ct lab-grown round diamond

This 0.53ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681525642 or 681525642. Listed at 16 retailers as of October 25, 2026, with prices from £71 to £651, a £580 spread on the same certified stone. MOH London lists it at £651. 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

0.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681525642
Dimensions5.20 × 5.25 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.20 mm5.25 mm0.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681525642
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £651 GBP|Low: £56 GBP|High: £654 GBP|Avg: £226 GBP|+0.6%
MOH London
Retailer 2
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Retailer 6
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Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 30, 2026
Retailer 4£71 GBP
Retailer 11£80 GBP
Retailer 6£83 GBP
Retailer 13£95 GBP
Retailer 15£95 GBP
Retailer 12£124 GBP
Retailer 2£168 GBP
Retailer 7£183 GBP
Retailer 9£185 GBP
Retailer 10£195 GBP
Retailer 16£208 GBP
Retailer 8£263 GBP
Retailer 5£285 GBP
Retailer 3£329 GBP
Retailer 14£645 GBP
MOH London£651 GBP

42 data points across 16 retailers

16 retailers£71 GBP to £651 GBP

A
Cheapest Retailer
-
£71 GBP
$95 USD
A
Retailer 2
-
£80 GBP
$106 USD
View
Final sale: no returns
A
Retailer 3
-
£83 GBP
$110 USD
View
A
Retailer 4
-
£95 GBP
$126 USD
View
A
Retailer 5
-
£95 GBP
$126 USD
View
Retailer 6
-
£124 GBP
$165 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
£168 GBP
View
B+
Retailer 8
-
£183 GBP
$244 USD
View
B+
Retailer 9
-
£185 GBP
€234 EUR
View
B+
Retailer 10
-
£195 GBP
$260 USD
View
B+
Retailer 11
-
£208 GBP
$277 USD
View
B+
Retailer 12
-
£263 GBP
$350 USD
View
B+
Retailer 13
-
£285 GBP
$379 USD
View
B
Retailer 14
-
£329 GBP
$438 USD
View
B
Retailer 15
-
£645 GBP
$859 USD
View
Most Expensive
B
MOH London
LG681525642 · Oct 25
£651 GBP
View
15 more retailers have this diamond
Prices start from £71 GBPSave up to £580 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
0.53ct Round
£71 GBP