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Oval|Lab Grown|GIA

1.66ct D SI1 Oval Lab Grown Diamond

D/SI1 • GIA 2235013285

Certificate GIA 2235013285

Diamond specifications and retailer prices

From £1,244 GBP
€1,590 EUR
As of October 31, 2026
1 retailer carries this diamond
Only listing: £1,244 GBP at Yorxs
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Yorxs

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 2235013285. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.66
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2235013285
Dimensions9.58 × 6.73 × 4.17 mm
L/W Ratio1.42
Girdle conditionFaceted
Top View
9.58 mm6.73 mm1.66 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235013285
Side View
Table 59.0%CrownGirdlePavilionCulet: NoneDepth 61.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 31
Current: £1,244 GBP|Low: £1,216 GBP|High: £1,245 GBP|Avg: £1,237 GBP|+2.3%
October 25, 2026
Yorxs£1,244 GBP

10 data points across 1 retailer

1 retailer

C
Yorxs
358149246 · Oct 31
£1,244 GBP
€1,590 EUR
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C
1.66ct Oval
£1,244 GBP