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Round|Lab Grown|IGI

4.30ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG692533943

Shape and cutting style on the report: Round brilliant

Certificate IGI LG692533943

Diamond specifications and retailer prices

From £1,467 GBP
$1,953 USD
As of October 29, 2026
Save £8,686 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £10,153 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.3ct lab-grown round diamond

This 4.3ct lab-grown round 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 LG692533943 or 692533943. Listed at 17 retailers as of October 29, 2026, with prices from £1,467 to £10,153, a £8,686 spread on the same certified stone. Brilliant Earth lists it at £10,153. 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

4.30
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG692533943
Dimensions10.48 × 10.43 × 6.40 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.48 mm10.43 mm4.30 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG692533943
Side View
Table 57.0%Crown 33.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.2%

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: £10,153 GBP|Low: £1,317 GBP|High: £11,324 GBP|Avg: £4,270 GBP|-2.9%
Brilliant Earth
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
Retailer 16
Retailer 17
October 29, 2026
Retailer 14£1,467 GBP
Retailer 4£1,595 GBP
Retailer 15£1,774 GBP
Retailer 9£1,844 GBP
Retailer 10£1,905 GBP
Retailer 12£1,907 GBP
Retailer 3£2,581 GBP
Retailer 13£2,663 GBP
Retailer 17£2,793 GBP
Retailer 8£2,881 GBP
Retailer 11£3,033 GBP
Retailer 5£3,915 GBP
Retailer 6£4,119 GBP
Retailer 2£5,121 GBP
Retailer 7£8,311 GBP
Retailer 16£10,085 GBP
Brilliant Earth£10,153 GBP

33 data points across 17 retailers

17 retailers£1,467 GBP to £10,153 GBP

A
Cheapest Retailer
-
£1,467 GBP
$1,953 USD
A
Retailer 2
-
£1,595 GBP
$2,124 USD
View
A
Retailer 3
-
£1,714 GBP
$2,283 USD
View
A
Retailer 4
-
£1,774 GBP
$2,362 USD
View
A
Retailer 5
-
£1,844 GBP
$2,456 USD
View
Final sale: no returns
A
Retailer 6
-
£1,907 GBP
$2,540 USD
View
A
Retailer 7
-
£2,581 GBP
$3,437 USD
View
A
Retailer 8
-
£2,663 GBP
$3,546 USD
View
A
Retailer 9
-
£2,793 GBP
$3,719 USD
View
A
Retailer 10
-
£2,881 GBP
$3,836 USD
View
A
Retailer 11
-
£3,033 GBP
€3,847 EUR
View
A
Retailer 12
-
£3,915 GBP
$5,214 USD
View
Retailer 13
-
£4,119 GBP
A$8,439 AUD
View
Price last confirmed 7 days ago
B+
Retailer 14
-
£5,121 GBP
View
Retailer 15
-
£8,311 GBP
A$17,028 AUD
View
Price last confirmed 21 days ago
B
Retailer 16
-
£10,085 GBP
$13,430 USD
View
Most Expensive
B
Brilliant Earth
13527946Y · Oct 29
£10,153 GBP
$13,520 USD
View
16 more retailers have this diamond
Prices start from £1,467 GBPSave up to £8,686 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
4.30ct Round
£1,467 GBP