CaratHunter
Plans
Heart|Lab Grown|IGI

0.90ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG639487413

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG639487413

Diamond specifications and retailer prices

From £134 GBP
$179 USD
As of October 30, 2026
Save £1,080 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,213 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 0.9ct lab-grown heart diamond

This 0.9ct lab-grown heart sits in the just-under-one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639487413 or 639487413. Listed at 22 retailers as of October 27, 2026, with prices from £134 to £1,213, a £1,080 spread on the same certified stone. Queensmith lists it at £1,213. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.90
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639487413
Dimensions5.90 × 6.81 × 3.87 mm
L/W Ratio1.15
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
5.90 mm6.81 mm0.90 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639487413
Side View
Table 61.0%Crown 33°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 56.8%

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: £295 GBP|Low: £134 GBP|High: £1,134 GBP|Avg: £426 GBP|-7.5%
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
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 14£134 GBP
Retailer 10£149 GBP
Retailer 21£154 GBP
Retailer 2£166 GBP
Retailer 4£166 GBP
Retailer 16£191 GBP
Retailer 6£225 GBP
Retailer 1£295 GBP
Retailer 17£299 GBP
Retailer 5£341 GBP
Retailer 20£399 GBP
Retailer 8£410 GBP
Retailer 18£412 GBP
Retailer 11£452 GBP
Retailer 3£532 GBP
Retailer 13£550 GBP
Retailer 9£572 GBP
Retailer 15£635 GBP
Retailer 19£774 GBP
Retailer 7£840 GBP
Retailer 12£1,000 GBP

41 data points across 21 retailers

22 retailers£134 GBP to £1,213 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
A
Retailer 2
-
£149 GBP
$200 USD
View
Final sale: no returns
A
Retailer 3
-
£154 GBP
$207 USD
View
A
Retailer 4
-
£166 GBP
$222 USD
View
A
Retailer 5
-
£166 GBP
$222 USD
View
A
Retailer 6
-
£191 GBP
HK$2,000 HKD
View
A
Retailer 7
-
£225 GBP
$302 USD
View
A
Retailer 8
-
£295 GBP
View
A
Retailer 9
-
£299 GBP
ZAR 6,472 ZAR
View
A
Retailer 10
-
£341 GBP
$457 USD
View
A
Retailer 11
-
£399 GBP
$534 USD
View
A
Retailer 12
-
£410 GBP
$550 USD
View
A
Retailer 13
-
£412 GBP
A$850 AUD
View
A
Retailer 14
-
£452 GBP
SGD 818 SGD
View
B+
Retailer 15
-
£532 GBP
$713 USD
View
B+
Retailer 16
-
£550 GBP
$737 USD
View
B+
Retailer 17
-
£572 GBP
$767 USD
View
B+
Retailer 18
-
£635 GBP
A$1,309 AUD
View
B+
Retailer 19
-
£774 GBP
View
B
Retailer 20
-
£840 GBP
$1,126 USD
View
B+
Retailer 21
-
£1,000 GBP
$1,340 USD
View
Most Expensive
B
Queensmith
LG639487413 · Oct 27
£1,213 GBP
View
21 more retailers have this diamond
Prices start from £134 GBPSave up to £1,080 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
0.90ct Heart
£134 GBP