CaratHunter
Plans
Marquise|Lab Grown|IGI

1.57ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG787651488

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG787651488

Diamond specifications and retailer prices

From £484 GBP
$649 USD
As of October 30, 2026
Save £3,814 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,299 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.57ct lab-grown marquise diamond

This 1.57ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787651488 or 787651488. Listed at 23 retailers as of October 30, 2026, with prices from £484 to £4,299, a £3,814 spread on the same certified stone. Do Amore Diamonds lists it at £4,299. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787651488
Dimensions12.01 × 6.15 × 3.80 mm
L/W Ratio1.95
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
12.01 mm6.15 mm1.57 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787651488
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 61.8%

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: £4,299 GBP|Low: £484 GBP|High: £4,478 GBP|Avg: £1,587 GBP|-4.0%
Do Amore Diamonds
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
Retailer 22
October 31, 2026
Retailer 6£484 GBP
Retailer 21£527 GBP
Retailer 8£543 GBP
Retailer 19£562 GBP
Retailer 22£687 GBP
Retailer 14£694 GBP
Retailer 5£746 GBP
Retailer 7£774 GBP
Retailer 18£916 GBP
Retailer 13£994 GBP
Retailer 17£1,140 GBP
Retailer 11£1,435 GBP
Retailer 2£1,544 GBP
Retailer 20£1,743 GBP
Retailer 9£1,916 GBP
Retailer 4£1,922 GBP
Retailer 10£1,945 GBP
Retailer 15£2,019 GBP
Retailer 3£2,220 GBP
Retailer 12£2,240 GBP
Retailer 16£2,448 GBP
Do Amore Diamonds£4,299 GBP

37 data points across 22 retailers

23 retailers£484 GBP to £4,299 GBP

A
Cheapest Retailer
-
£484 GBP
$649 USD
A
Retailer 2
-
£527 GBP
$706 USD
View
A
Retailer 3
-
£543 GBP
$727 USD
View
Final sale: no returns
A
Retailer 4
-
£562 GBP
$753 USD
View
Retailer 5
-
£585 GBP
$784 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
£687 GBP
$921 USD
View
A
Retailer 7
-
£694 GBP
$930 USD
View
A
Retailer 8
-
£746 GBP
$999 USD
View
A
Retailer 9
-
£774 GBP
HK$8,100 HKD
View
A
Retailer 10
-
£916 GBP
$1,228 USD
View
A
Retailer 11
-
£994 GBP
View
A
Retailer 12
-
£1,140 GBP
ZAR 24,674 ZAR
View
B+
Retailer 13
-
£1,435 GBP
$1,923 USD
View
B+
Retailer 14
-
£1,544 GBP
A$3,183 AUD
View
B+
Retailer 15
-
£1,743 GBP
$2,336 USD
View
B+
Retailer 16
-
£1,916 GBP
$2,567 USD
View
B+
Retailer 17
-
£1,922 GBP
View
B+
Retailer 18
-
£1,945 GBP
$2,606 USD
View
B+
Retailer 19
-
£2,019 GBP
$2,705 USD
View
B+
Retailer 20
-
£2,220 GBP
$2,975 USD
View
B
Retailer 21
-
£2,240 GBP
SGD 4,055 SGD
View
B+
Retailer 22
-
£2,448 GBP
View
Most Expensive
B
Do Amore Diamonds
27-609A41763 · Oct 31
£4,299 GBP
$5,760 USD
View
22 more retailers have this diamond
Prices start from £484 GBPSave up to £3,814 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
1.57ct Marquise
£484 GBP