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Heart|Lab Grown|IGI

16.74ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG773667311

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG773667311

Diamond specifications and retailer prices

From £4,813 GBP
As of November 2, 2026
Save £15,659 GBP (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £20,472 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 16.74ct lab-grown heart diamond

This 16.74ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG773667311 or 773667311. Listed at 17 retailers as of October 31, 2026, with prices from £4,813 to £20,472, a £15,659 spread on the same certified stone. Taylor and Hart lists it at £20,472. 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

16.74
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773667311
Dimensions15.60 × 17.36 × 10.50 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.60 mm17.36 mm16.74 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773667311
Side View
Table 63.0%Crown 41.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.5%

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: Nov 2
Current: £9,305 GBP|Low: £4,811 GBP|High: £16,680 GBP|Avg: £7,656 GBP|+2.2%
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
November 3, 2026
Retailer 10£4,813 GBP
Retailer 2£5,166 GBP
Retailer 14£5,373 GBP
Retailer 6£5,707 GBP
Retailer 12£5,977 GBP
Retailer 4£5,992 GBP
Retailer 16£5,992 GBP
Retailer 7£6,006 GBP
Retailer 3£6,888 GBP
Retailer 15£7,114 GBP
Retailer 9£7,465 GBP
Retailer 13£8,868 GBP
Retailer 1£9,305 GBP
Retailer 11£11,440 GBP
Retailer 8£12,956 GBP
Retailer 5£16,680 GBP

38 data points across 16 retailers

17 retailers£4,813 GBP to £20,472 GBP

A
Cheapest Retailer
-
£4,813 GBP
A
Retailer 2
-
£5,166 GBP
$6,928 USD
View
A
Retailer 3
-
£5,373 GBP
$7,205 USD
View
A
Retailer 4
-
£5,707 GBP
$7,654 USD
View
B+
Retailer 5
-
£5,977 GBP
$8,015 USD
View
A
Retailer 6
-
£5,992 GBP
$8,036 USD
View
Retailer 7
-
£5,992 GBP
$8,036 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£6,006 GBP
$8,054 USD
View
Final sale: no returns
B+
Retailer 9
-
£6,888 GBP
$9,237 USD
View
B+
Retailer 10
-
£7,114 GBP
$9,540 USD
View
B+
Retailer 11
-
£7,465 GBP
View
B
Retailer 12
-
£8,868 GBP
$11,892 USD
View
B+
Retailer 13
-
£9,305 GBP
ZAR 201,594 ZAR
View
B
Retailer 14
-
£11,440 GBP
A$23,603 AUD
View
B
Retailer 15
-
£12,956 GBP
$17,375 USD
View
B
Retailer 16
-
£16,680 GBP
$22,369 USD
View
Most Expensive
B
Taylor and Hart
E7BZ2N4 · Oct 31
£20,472 GBP
$27,454 USD
View
16 more retailers have this diamond
Prices start from £4,813 GBPSave up to £15,659 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
16.74ct Heart
£4,813 GBP