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Oval|Lab Grown|IGI

1.56ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG799653432

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG799653432

Diamond specifications and retailer prices

From £227 GBP
$301 USD
As of October 26, 2026
Save £3,521 GBP (94%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,748 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.56ct lab-grown oval diamond

This 1.56ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799653432 or 799653432. Listed at 21 retailers as of October 26, 2026, with prices from £227 to £3,748, a £3,521 spread on the same certified stone. Brilliant Earth lists it at £3,748. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799653432
Dimensions9.15 × 6.51 × 4.08 mm
L/W Ratio1.41
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
9.15 mm6.51 mm1.56 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799653432
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.7%

Caratlytics Score

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A+
Exceptional
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 26
Current: £3,748 GBP|Low: £227 GBP|High: £3,748 GBP|Avg: £758 GBP
Brilliant Earth
Retailer 2
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October 29, 2026
Retailer 9£227 GBP
Retailer 7£253 GBP
Retailer 3£262 GBP
Retailer 2£280 GBP
Retailer 5£281 GBP
Retailer 8£308 GBP
Retailer 16£375 GBP
Retailer 20£399 GBP
Retailer 13£477 GBP
Retailer 15£482 GBP
Retailer 18£494 GBP
Retailer 11£498 GBP
Retailer 14£653 GBP
Retailer 4£863 GBP
Retailer 19£893 GBP
Retailer 17£901 GBP
Retailer 12£1,014 GBP
Retailer 10£1,090 GBP
Retailer 6£1,128 GBP
Brilliant Earth£3,748 GBP

21 data points across 20 retailers

21 retailers£227 GBP to £3,748 GBP

A+
Cheapest Retailer
-
£227 GBP
$301 USD
A
Retailer 2
-
£253 GBP
$336 USD
View
Final sale: no returns
A
Retailer 3
-
£262 GBP
$348 USD
View
A
Retailer 4
-
£280 GBP
$372 USD
View
A
Retailer 5
-
£281 GBP
$373 USD
View
A
Retailer 6
-
£308 GBP
HK$3,200 HKD
View
A
Retailer 7
-
£375 GBP
$498 USD
View
A
Retailer 8
-
£399 GBP
$530 USD
View
A
Retailer 9
-
£477 GBP
$634 USD
View
A
Retailer 10
-
£482 GBP
ZAR 10,336 ZAR
View
A
Retailer 11
-
£494 GBP
View
A
Retailer 12
-
£498 GBP
€630 EUR
View
Price last confirmed 10 days ago
A
Retailer 13
-
£653 GBP
A$1,335 AUD
View
B+
Retailer 14
-
£863 GBP
$1,147 USD
View
B+
Retailer 15
-
£893 GBP
SGD 1,603 SGD
View
B+
Retailer 16
-
£901 GBP
$1,197 USD
View
B+
Retailer 17
-
£1,014 GBP
$1,347 USD
View
B+
Retailer 18
-
£1,090 GBP
View
B+
Retailer 19
-
£1,128 GBP
View
B
Retailer 20
-
£2,540 GBP
$3,375 USD
View
Price last confirmed 86 days ago
Most Expensive
B
Brilliant Earth
19900643A · Oct 28
£3,748 GBP
$4,980 USD
View
20 more retailers have this diamond
Prices start from £227 GBPSave up to £3,521 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+
1.56ct Oval
£227 GBP