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Oval|Lab Grown|IGI

1.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG787602899

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG787602899

Diamond specifications and retailer prices

From £163 GBP
$219 USD
As of October 29, 2026
Save £1,404 GBP (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,567 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown oval diamond

This 1.51ct 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 top-tier cut grade and certified by IGI LG787602899 or 787602899. Listed at 17 retailers as of October 29, 2026, with prices from £163 to £1,567, a £1,404 spread on the same certified stone. Do Amore Diamonds lists it at £1,567. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787602899
Dimensions9.69 × 6.31 × 3.86 mm
L/W Ratio1.54
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.69 mm6.31 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787602899
Side View
Table 59.0%Crown 36.2°Girdle: THN-STKPavilion 40.2°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,567 GBP|Low: £130 GBP|High: £1,567 GBP|Avg: £544 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 13£163 GBP
Retailer 3£183 GBP
Retailer 6£190 GBP
Retailer 4£202 GBP
Retailer 10£202 GBP
Retailer 15£289 GBP
Retailer 11£346 GBP
Retailer 2£424 GBP
Retailer 14£448 GBP
Retailer 9£653 GBP
Retailer 5£719 GBP
Retailer 7£846 GBP
Retailer 8£900 GBP
Retailer 12£935 GBP
Do Amore Diamonds£1,567 GBP

42 data points across 15 retailers

17 retailers£163 GBP to £1,567 GBP

Retailer 1
-
£163 GBP
$219 USD
Price last confirmed 39 days ago
A
Retailer 2
-
£163 GBP
$219 USD
View
A
Retailer 3
-
£183 GBP
$245 USD
View
Final sale: no returns
A
Retailer 4
-
£190 GBP
$254 USD
View
Retailer 5
-
£200 GBP
$268 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
£202 GBP
$271 USD
View
A
Retailer 7
-
£202 GBP
$271 USD
View
A
Retailer 8
-
£289 GBP
$387 USD
View
A
Retailer 9
-
£346 GBP
$464 USD
View
B+
Retailer 10
-
£424 GBP
View
B+
Retailer 11
-
£448 GBP
$600 USD
View
B
Retailer 12
-
£653 GBP
$875 USD
View
B
Retailer 13
-
£719 GBP
$963 USD
View
B
Retailer 14
-
£846 GBP
$1,134 USD
View
B
Retailer 15
-
£900 GBP
View
B
Retailer 16
-
£935 GBP
$1,253 USD
View
Most Expensive
B
Do Amore Diamonds
27-137BF777B · Oct 31
£1,567 GBP
$2,100 USD
View
16 more retailers have this diamond
Prices start from £163 GBPSave up to £1,404 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
1.51ct Oval
£163 GBP