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Round|Lab Grown|GIA

1.43ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • GIA 6515937605

Certificate GIA 6515937605

Diamond specifications and retailer prices

From £843 GBP
$1,130 USD
As of October 30, 2026
Save £351 GBP (29%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,194 GBP at Jared · As of October 30, 2026
View at Jared

About this 1.43ct lab-grown round diamond

This 1.43ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6515937605. Listed at 3 retailers as of October 30, 2026, with prices from £843 to £1,194, a £351 spread on the same certified stone. Jared lists it at £1,194. 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

1.43
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6515937605
Dimensions7.21 × 7.25 mm
L/W Ratio1.01
Top View
7.21 mm7.25 mm1.43 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515937605
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £1,194 GBP|Low: £843 GBP|High: £1,194 GBP|Avg: £1,017 GBP
Jared
Retailer 2
Retailer 3
February 26, 2026
Retailer 2£843 GBP
Retailer 3£843 GBP
Jared£1,194 GBP

5 data points across 3 retailers

3 retailers£843 GBP to £1,194 GBP

B
Cheapest Retailer
-
£843 GBP
$1,130 USD
B
Retailer 2
-
£843 GBP
$1,130 USD
View
Most Expensive
B
Jared
154478546 · Oct 30
£1,194 GBP
$1,600 USD
View
2 more retailers have this diamond
Prices start from £843 GBPSave up to £351 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
1.43ct Round
£843 GBP