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Round|Lab Grown|IGI

4.30ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG687594066

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687594066

Diamond specifications and retailer prices

From £2,518 GBP
As of October 29, 2026
Save £16,803 GBP (87%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £19,321 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG687594066 or 687594066. Listed at 25 retailers as of October 29, 2026, with prices from £2,518 to £19,321, a £16,803 spread on the same certified stone. Do Amore Diamonds lists it at £19,321. 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 angle34.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687594066
Dimensions10.57 × 10.52 × 6.35 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.57 mm10.52 mm4.30 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687594066
Side View
Table 58.0%Crown 34.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
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: £6,890 GBP|Low: £2,427 GBP|High: £18,127 GBP|Avg: £5,447 GBP|+1.9%
Retailer 1
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
Retailer 18
October 29, 2026
Retailer 14£2,518 GBP
Retailer 18£2,528 GBP
Retailer 8£2,751 GBP
Retailer 10£2,831 GBP
Retailer 3£2,933 GBP
Retailer 7£2,935 GBP
Retailer 15£2,936 GBP
Retailer 9£4,045 GBP
Retailer 17£4,045 GBP
Retailer 11£4,203 GBP
Retailer 5£4,552 GBP
Retailer 13£5,132 GBP
Retailer 1£6,890 GBP
Retailer 12£6,971 GBP
Retailer 16£7,027 GBP
Retailer 4£7,385 GBP
Retailer 6£11,168 GBP
Retailer 2£18,127 GBP

40 data points across 18 retailers

25 retailers£2,518 GBP to £19,321 GBP

A
Cheapest Retailer
-
£2,518 GBP
A
Retailer 2
-
£2,528 GBP
$3,367 USD
View
A
Retailer 3
-
£2,751 GBP
$3,663 USD
View
A
Retailer 4
-
£2,831 GBP
$3,770 USD
View
Final sale: no returns
A
Retailer 5
-
£2,933 GBP
$3,906 USD
View
A
Retailer 6
-
£2,933 GBP
$3,906 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£2,935 GBP
$3,908 USD
View
A
Retailer 8
-
£2,936 GBP
$3,910 USD
View
A
Retailer 9
-
£3,062 GBP
$4,077 USD
View
A
Retailer 10
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£4,045 GBP
$5,387 USD
View
A
Retailer 11
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£4,045 GBP
$5,387 USD
View
A
Retailer 12
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£4,203 GBP
View
A
Retailer 13
-
£4,552 GBP
$6,062 USD
View
B+
Retailer 14
-
£5,132 GBP
€6,509 EUR
View
B+
Retailer 15
-
£5,408 GBP
$7,201 USD
View
Price last confirmed 109 days ago
B+
Retailer 16
-
£6,890 GBP
ZAR 148,219 ZAR
View
B+
Retailer 17
-
£6,971 GBP
View
B+
Retailer 18
-
£7,027 GBP
A$14,397 AUD
View
Price last confirmed 7 days ago
B+
Retailer 19
-
£7,385 GBP
$9,834 USD
View
B+
Retailer 20
-
£7,762 GBP
$10,336 USD
View
B
Retailer 21
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£11,168 GBP
SGD 20,098 SGD
View
B
Retailer 22
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£11,435 GBP
$15,227 USD
View
B
Retailer 23
-
£17,392 GBP
$23,160 USD
View
B
Retailer 24
-
£18,127 GBP
$24,140 USD
View
Most Expensive
B
Do Amore Diamonds
23-687594066 · Oct 29
£19,321 GBP
$25,730 USD
View
24 more retailers have this diamond
Prices start from £2,518 GBPSave up to £16,803 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
£2,518 GBP