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Oval|Lab Grown|IGI

4.00ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG727578306

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG727578306

Diamond specifications and retailer prices

From £1,783 GBP
As of October 30, 2026
Save £9,251 GBP (84%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £11,479 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727578306 or 727578306. Listed at 26 retailers as of October 30, 2026, with a 519% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.00
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727578306
Dimensions12.68 × 9.00 × 5.58 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
12.68 mm9.00 mm4.00 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727578306
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £11,479 GBP|Low: £1,783 GBP|High: £11,501 GBP|Avg: £4,021 GBP|-0.2%
Novita 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
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
October 30, 2026
Retailer 13£1,783 GBP
Retailer 19£1,840 GBP
Retailer 11£2,002 GBP
Retailer 2£2,061 GBP
Retailer 24£2,134 GBP
Retailer 23£2,226 GBP
Retailer 21£2,257 GBP
Retailer 3£2,614 GBP
Retailer 18£2,882 GBP
Retailer 7£2,934 GBP
Retailer 16£3,339 GBP
Retailer 17£3,417 GBP
Retailer 14£3,617 GBP
Retailer 5£3,797 GBP
Retailer 10£4,051 GBP
Retailer 20£4,543 GBP
Retailer 15£4,882 GBP
Retailer 12£5,699 GBP
Retailer 22£5,745 GBP
Retailer 8£5,996 GBP
Retailer 6£7,450 GBP
Retailer 9£7,556 GBP
Retailer 4£11,034 GBP
Novita Diamonds£11,479 GBP

26 data points across 24 retailers

26 retailers£1,783 GBP to £11,034 GBP

A+
Cheapest Retailer
-
£1,783 GBP
A
Retailer 2
-
£1,840 GBP
$2,450 USD
View
A
Retailer 3
-
£2,002 GBP
$2,666 USD
View
A
Retailer 4
-
£2,061 GBP
$2,744 USD
View
Final sale: no returns
A
Retailer 5
-
£2,134 GBP
$2,842 USD
View
A
Retailer 6
-
£2,226 GBP
$2,964 USD
View
A
Retailer 7
-
£2,257 GBP
$3,005 USD
View
A
Retailer 8
-
£2,614 GBP
HK$27,200 HKD
View
A
Retailer 9
-
£2,882 GBP
View
A
Retailer 10
-
£2,934 GBP
$3,907 USD
View
A
Retailer 11
-
£3,339 GBP
$4,446 USD
View
A
Retailer 12
-
£3,417 GBP
$4,550 USD
View
A
Retailer 13
-
£3,617 GBP
€4,587 EUR
View
A
Retailer 14
-
£3,797 GBP
$5,056 USD
View
A
Retailer 15
-
£4,051 GBP
View
A
Retailer 16
-
£4,543 GBP
ZAR 97,746 ZAR
View
Retailer 17
-
£4,882 GBP
A$10,002 AUD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
£5,699 GBP
$7,589 USD
View
B+
Retailer 19
-
£5,745 GBP
View
B+
Retailer 20
-
£5,947 GBP
$7,920 USD
View
B+
Retailer 21
-
£5,996 GBP
$7,985 USD
View
B
Retailer 22
-
£7,450 GBP
$9,921 USD
View
B
Retailer 23
-
£7,556 GBP
SGD 13,597 SGD
View
B
Retailer 24
-
£9,807 GBP
$13,060 USD
View
B
Retailer 25
-
£11,034 GBP
$14,694 USD
View
Most Expensive
Novita Diamonds
cert_727578306 · Oct 8
£11,479 GBP
A$23,518 AUD
View
Price last confirmed 21 days ago
25 more retailers have this diamond
Prices start from £1,783 GBPSave up to £9,251 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+
4.00ct Oval
£1,783 GBP