CaratHunter
Plans
Heart|Lab Grown|IGI

1.71ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG825665153

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825665153

Diamond specifications and retailer prices

From £934 GBP
$1,251 USD
As of October 30, 2026
Save £3,447 GBP (79%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,381 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown heart diamond

This 1.71ct 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 very-good cut grade and certified by IGI LG825665153 or 825665153. Listed at 7 retailers as of October 29, 2026, with prices from £934 to £4,381, a £3,447 spread on the same certified stone. Do Amore Diamonds lists it at £4,381. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825665153
Dimensions7.41 × 8.38 × 4.69 mm
L/W Ratio1.13
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
7.41 mm8.38 mm1.71 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825665153
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 56.0%

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: £4,381 GBP|Low: £731 GBP|High: £4,582 GBP|Avg: £2,078 GBP|-4.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6£934 GBP
Retailer 4£937 GBP
Retailer 7£1,102 GBP
Retailer 8£1,237 GBP
Retailer 2£1,419 GBP
Retailer 10£1,428 GBP
Retailer 5£2,496 GBP
Retailer 9£2,804 GBP
Retailer 3£3,000 GBP
Do Amore Diamonds£4,381 GBP

14 data points across 10 retailers

7 retailers£934 GBP to £4,381 GBP

A
Cheapest Retailer
-
£934 GBP
$1,251 USD
B+
Retailer 2
-
£937 GBP
$1,255 USD
View
B+
Retailer 3
-
£1,419 GBP
$1,901 USD
View
Retailer 4
-
£1,428 GBP
ZAR 30,921 ZAR
View
Price last confirmed 49 days ago
B
Retailer 5
-
£2,496 GBP
View
B
Retailer 6
-
£3,000 GBP
$4,020 USD
View
Most Expensive
B
Do Amore Diamonds
27-7BF979ADA · Oct 29
£4,381 GBP
$5,870 USD
View
6 more retailers have this diamond
Prices start from £934 GBPSave up to £3,447 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
1.71ct Heart
£934 GBP