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Heart|Lab Grown|IGI

1.70ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG825632090

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825632090

Diamond specifications and retailer prices

From £928 GBP
$1,244 USD
As of October 30, 2026
Save £3,430 GBP (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,359 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.7ct lab-grown heart diamond

This 1.7ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825632090 or 825632090. Listed at 7 retailers as of October 29, 2026, with prices from £928 to £4,359, a £3,430 spread on the same certified stone. Do Amore Diamonds lists it at £4,359. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825632090
Dimensions8.23 × 7.20 × 4.85 mm
L/W Ratio1.14
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
8.23 mm7.20 mm1.70 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825632090
Side View
Table 58.0%Crown 36°Girdle: MED-THKPavilion 38.6°Culet: NoneDepth 58.9%

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: £4,359 GBP|Low: £578 GBP|High: £4,560 GBP|Avg: £1,912 GBP|-4.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11£578 GBP
Retailer 7£928 GBP
Retailer 5£929 GBP
Retailer 10£1,091 GBP
Retailer 8£1,230 GBP
Retailer 6£1,411 GBP
Retailer 9£1,420 GBP
Retailer 4£2,481 GBP
Retailer 3£2,788 GBP
Retailer 2£2,985 GBP
Do Amore Diamonds£4,359 GBP

15 data points across 11 retailers

7 retailers£928 GBP to £4,359 GBP

A
Cheapest Retailer
-
£928 GBP
$1,244 USD
A
Retailer 2
-
£929 GBP
$1,245 USD
View
B+
Retailer 3
-
£1,411 GBP
$1,890 USD
View
Retailer 4
-
£1,420 GBP
ZAR 30,746 ZAR
View
Price last confirmed 49 days ago
B
Retailer 5
-
£2,481 GBP
View
B
Retailer 6
-
£2,985 GBP
$4,000 USD
View
Most Expensive
B
Do Amore Diamonds
27-68BB18C42 · Oct 29
£4,359 GBP
$5,840 USD
View
6 more retailers have this diamond
Prices start from £928 GBPSave up to £3,430 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
1.70ct Heart
£928 GBP