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Heart|Lab Grown|IGI

6.58ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG651406131

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG651406131

Diamond specifications and retailer prices

From £12,929 GBP
$17,323 USD
As of October 30, 2026
Save £29,644 GBP (70%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £42,572 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 6.58ct lab-grown heart diamond

This 6.58ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG651406131 or 651406131. Listed at 19 retailers as of October 30, 2026, with prices from £12,929 to £42,572, a £29,644 spread on the same certified stone. Reve Diamonds lists it at £42,572. 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

6.58
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651406131
Dimensions11.27 × 13.02 × 7.47 mm
L/W Ratio1.16
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
11.27 mm13.02 mm6.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651406131
Side View
Table 59.0%Crown 37°Girdle: MED-STKPavilion 36.8°Culet: NoneDepth 57.4%

Caratlytics Score

How it works →
A
Excellent
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: £29,544 GBP|Low: £12,537 GBP|High: £53,884 GBP|Avg: £24,329 GBP|-16.5%
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
Reve Diamonds
October 29, 2026
Retailer 6£12,929 GBP
Retailer 15£13,162 GBP
Retailer 3£13,477 GBP
Retailer 2£14,308 GBP
Retailer 7£14,740 GBP
Retailer 14£15,042 GBP
Retailer 18£15,098 GBP
Retailer 17£15,267 GBP
Retailer 5£17,299 GBP
Retailer 8£19,837 GBP
Retailer 11£23,561 GBP
Retailer 13£24,771 GBP
Retailer 10£28,016 GBP
Retailer 12£28,671 GBP
Retailer 1£29,544 GBP
Retailer 16£36,659 GBP
Retailer 9£37,108 GBP
Reve Diamonds£42,572 GBP
Retailer 4£53,884 GBP

23 data points across 19 retailers

19 retailers£12,929 GBP to £42,572 GBP

A
Cheapest Retailer
-
£12,929 GBP
$17,323 USD
A
Retailer 2
-
£13,162 GBP
$17,635 USD
View
A
Retailer 3
-
£13,477 GBP
$18,058 USD
View
A
Retailer 4
-
£14,308 GBP
$19,171 USD
View
A
Retailer 5
-
£14,740 GBP
$19,750 USD
View
Final sale: no returns
A
Retailer 6
-
£15,042 GBP
$20,154 USD
View
A
Retailer 7
-
£15,098 GBP
$20,229 USD
View
Retailer 8
-
£15,267 GBP
$20,456 USD
View
Price last confirmed 14 days ago
A
Retailer 9
-
£15,267 GBP
$20,456 USD
View
B+
Retailer 10
-
£19,837 GBP
$26,580 USD
View
B+
Retailer 11
-
£23,561 GBP
View
B+
Retailer 12
-
£24,771 GBP
$33,190 USD
View
Retailer 13
-
£28,671 GBP
A$59,101 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£29,544 GBP
ZAR 639,501 ZAR
View
B
Retailer 15
-
£36,659 GBP
$49,119 USD
View
B
Retailer 16
-
£37,108 GBP
$49,721 USD
View
B
Retailer 17
-
£38,912 GBP
$52,138 USD
View
Most Expensive
B
Reve Diamonds
35CFBEDCB · Oct 30
£42,572 GBP
$57,042 USD
View
17 more retailers have this diamond
Prices start from £12,929 GBPSave up to £29,644 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
6.58ct Heart
£12,929 GBP