Oval|Lab Grown|IGI

1.54ct D SI1 Oval Lab Grown Diamond

VG • D/SI1

Diamond specifications and retailer prices

From £177 GBP
$237 USD
As of October 29, 2026
Save £528 GBP (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £705 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.54ct lab-grown oval diamond

This 1.54ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI. Listed at 7 retailers as of October 29, 2026, with prices from £177 to £705, a £528 spread on the same certified stone. NZ Jewellers lists it at £705. 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

1.54
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.17 × 6.56 × 4.18 mm
L/W Ratio1.40
Top View
9.17 mm6.56 mm1.54 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 59.5%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.7%

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: £705 GBP|Low: £119 GBP|High: £792 GBP|Avg: £348 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 20, 2026
Retailer 6£119 GBP
Retailer 3£177 GBP
Retailer 2£205 GBP
Retailer 5£219 GBP
Retailer 4£245 GBP
NZ Jewellers£705 GBP
Retailer 7£792 GBP

27 data points across 7 retailers

7 retailers£177 GBP to £705 GBP

Retailer 1
-
£170 GBP
$228 USD
Price last confirmed 26 days ago
A
Retailer 2
-
£177 GBP
$237 USD
View
Retailer 3
-
£177 GBP
$237 USD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
£205 GBP
$275 USD
View
Retailer 5
-
£245 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
£705 GBP
$945 USD
View
Price last confirmed 23 days ago
Most Expensive
B
NZ Jewellers
c7f90407-4b22-401e-9bc9-a9aa1d1dee97 · Oct 31
£705 GBP
$945 USD
View
6 more retailers have this diamond
Prices start from £177 GBPSave up to £528 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
1.54ct Oval
£177 GBP