Marquise|Lab Grown|IGI

1.56ct G VVS1 Marquise Lab Grown Diamond

ID • G/VVS1 • IGI LG816606279

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816606279

Diamond specifications and retailer prices

From £426 GBP
€544 EUR
As of October 27, 2026
Save £610 GBP (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,430 GBP at Helzberg Diamonds · As of October 25, 2026
View at Helzberg Diamonds

About this 1.56ct lab-grown marquise diamond

This 1.56ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816606279 or 816606279. Listed at 22 retailers as of October 27, 2026, with a 143% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816606279
Dimensions12.14 × 6.00 × 3.61 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.14 mm6.00 mm1.56 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816606279
Side View
Table 63.0%Crown 34.9°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 60.2%

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 27
Current: £426 GBP|Low: £183 GBP|High: £1,036 GBP|Avg: £543 GBP|+6.3%
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 27, 2026
Retailer 3£193 GBP
Retailer 11£224 GBP
Retailer 6£239 GBP
Retailer 9£239 GBP
Retailer 2£254 GBP
Retailer 19£358 GBP
Retailer 7£399 GBP
Retailer 18£404 GBP
Retailer 1£426 GBP
Retailer 5£437 GBP
Retailer 12£442 GBP
Retailer 13£508 GBP
Retailer 17£561 GBP
Retailer 20£633 GBP
Retailer 4£768 GBP
Retailer 21£801 GBP
Retailer 10£807 GBP
Retailer 15£932 GBP
Retailer 16£960 GBP
Retailer 8£1,029 GBP
Retailer 14£1,036 GBP

30 data points across 21 retailers

22 retailers£426 GBP to £1,036 GBP

Retailer 1
-
£193 GBP
$259 USD
Price last confirmed 10 days ago
Retailer 2
-
£224 GBP
$300 USD
View
Price last confirmed 9 days ago
Retailer 3
-
£239 GBP
$321 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£239 GBP
$321 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£358 GBP
$480 USD
View
Price last confirmed 8 days ago
Retailer 6
-
£399 GBP
$535 USD
View
Price last confirmed 8 days ago
Retailer 7
-
£404 GBP
ZAR 8,765 ZAR
View
Price last confirmed 10 days ago
A
Retailer 8
-
£426 GBP
€544 EUR
View
Retailer 9
-
£437 GBP
$586 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£442 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£508 GBP
$682 USD
View
Price last confirmed 8 days ago
Retailer 12
-
£561 GBP
A$1,159 AUD
View
Price last confirmed 9 days ago
Retailer 13
-
£633 GBP
$850 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£768 GBP
$1,031 USD
View
Price last confirmed 8 days ago
Retailer 15
-
£801 GBP
$1,075 USD
View
Price last confirmed 15 days ago
Retailer 16
-
£807 GBP
$1,083 USD
View
Price last confirmed 8 days ago
Retailer 17
-
£932 GBP
$1,251 USD
View
Price last confirmed 8 days ago
Retailer 18
-
£960 GBP
View
Price last confirmed 9 days ago
Retailer 19
-
£1,029 GBP
$1,381 USD
View
Price last confirmed 9 days ago
B
Retailer 20
-
£1,036 GBP
$1,390 USD
View
Retailer 21
-
£1,036 GBP
$1,390 USD
View
Price last confirmed 9 days ago
Most Expensive
Helzberg Diamonds
ZXZOHMMGMINP · Oct 25
£1,430 GBP
$1,919 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from £426 GBPSave up to £610 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
1.56ct Marquise
£426 GBP