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Oval|Lab Grown|IGI

1.56ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754509033

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754509033

Diamond specifications and retailer prices

From £231 GBP
$310 USD
As of October 30, 2026
Save £1,837 GBP (89%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: £2,068 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

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 LG754509033 or 754509033. Listed at 32 retailers as of October 29, 2026, with prices from £231 to £2,068, a £1,837 spread on the same certified stone. Blue Nile lists it at £2,068. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754509033
Dimensions6.57 × 6.57 × 4.03 mm
L/W Ratio1.00
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
6.57 mm6.57 mm1.56 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754509033
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.3%

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 30
Current: £2,068 GBP|Low: £219 GBP|High: £2,523 GBP|Avg: £888 GBP
Blue Nile
Retailer 2
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October 30, 2026
Retailer 24£231 GBP
Retailer 18£241 GBP
Retailer 12£363 GBP
Retailer 4£379 GBP
Retailer 22£381 GBP
Retailer 23£439 GBP
Retailer 9£440 GBP
Retailer 21£459 GBP
Retailer 13£472 GBP
Retailer 10£538 GBP
Retailer 11£599 GBP
Retailer 5£619 GBP
Retailer 20£621 GBP
Retailer 25£743 GBP
Retailer 17£914 GBP
Retailer 7£952 GBP
Retailer 14£982 GBP
Retailer 6£1,035 GBP
Retailer 15£1,054 GBP
Retailer 19£1,077 GBP
Retailer 3£1,451 GBP
Retailer 8£1,731 GBP
Retailer 16£1,806 GBP
Retailer 2£2,000 GBP
Blue Nile£2,068 GBP

37 data points across 25 retailers

32 retailers£231 GBP to £2,068 GBP

Retailer 1
-
£207 GBP
$278 USD
Price last confirmed 31 days ago
Retailer 2
-
£226 GBP
$303 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£231 GBP
$310 USD
View
Final sale: no returns
Retailer 4
-
£241 GBP
$323 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
£242 GBP
$324 USD
View
Retailer 6
-
£242 GBP
$324 USD
View
Price last confirmed 20 days ago
Retailer 7
-
£242 GBP
$324 USD
View
Price last confirmed 28 days ago
Retailer 8
-
£254 GBP
$340 USD
View
Price last confirmed 31 days ago
A
Retailer 9
-
£363 GBP
HK$3,800 HKD
View
A
Retailer 10
-
£379 GBP
$508 USD
View
A
Retailer 11
-
£381 GBP
$510 USD
View
A
Retailer 12
-
£439 GBP
€560 EUR
View
A
Retailer 13
-
£440 GBP
$589 USD
View
A
Retailer 14
-
£459 GBP
ZAR 9,936 ZAR
View
A
Retailer 15
-
£472 GBP
View
A
Retailer 16
-
£538 GBP
A$1,108 AUD
View
A
Retailer 17
-
£599 GBP
$803 USD
View
A
Retailer 18
-
£619 GBP
$829 USD
View
A
Retailer 19
-
£621 GBP
A$1,281 AUD
View
B+
Retailer 20
-
£743 GBP
$996 USD
View
Retailer 21
-
£859 GBP
$1,151 USD
View
Price last confirmed 20 days ago
Retailer 22
-
£914 GBP
$1,224 USD
View
Price last confirmed 30 days ago
B+
Retailer 23
-
£952 GBP
$1,276 USD
View
B+
Retailer 24
-
£982 GBP
$1,316 USD
View
B+
Retailer 25
-
£1,035 GBP
$1,387 USD
View
B+
Retailer 26
-
£1,054 GBP
SGD 1,909 SGD
View
B+
Retailer 27
-
£1,077 GBP
View
Retailer 28
-
£1,451 GBP
A$2,992 AUD
View
Price last confirmed 22 days ago
B
Retailer 29
-
£1,731 GBP
$2,320 USD
View
Retailer 30
-
£1,806 GBP
$2,420 USD
View
Price last confirmed 32 days ago
B
Retailer 31
-
£2,000 GBP
$2,680 USD
View
Most Expensive
B
Blue Nile
28929769 · Oct 29
£2,068 GBP
$2,771 USD
View
31 more retailers have this diamond
Prices start from £231 GBPSave up to £1,837 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
£231 GBP