CaratHunter
Plans
Marquise|Lab Grown|IGI

0.70ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436047188

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047188

Diamond specifications and retailer prices

From £320 GBP
$430 USD
As of November 2, 2026
Save £1,081 GBP (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,604 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.7ct lab-grown marquise diamond

This 0.7ct lab-grown marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047188 or 436047188. Listed at 11 retailers as of October 31, 2026, with a 337% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.70
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047188
Dimensions8.74 × 4.83 × 2.98 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Top View
8.74 mm4.83 mm0.70 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047188
Side View
Table 57.5%Crown 34.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.7%

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: £1,604 GBP|Low: £320 GBP|High: £1,752 GBP|Avg: £761 GBP|+0.2%
MOH London
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
October 31, 2026
Retailer 8£320 GBP
Retailer 10£352 GBP
Retailer 3£393 GBP
Retailer 14£393 GBP
Retailer 7£407 GBP
Retailer 11£436 GBP
Retailer 15£436 GBP
Retailer 4£540 GBP
Retailer 13£680 GBP
Retailer 2£732 GBP
Retailer 5£740 GBP
Retailer 9£1,172 GBP
Retailer 12£1,402 GBP
MOH London£1,604 GBP
Retailer 6£1,752 GBP

26 data points across 15 retailers

11 retailers£320 GBP to £1,402 GBP

A
Cheapest Retailer
-
£320 GBP
$430 USD
B+
Retailer 2
-
£352 GBP
$472 USD
View
B+
Retailer 3
-
£393 GBP
$528 USD
View
Final sale: no returns
B+
Retailer 4
-
£393 GBP
$528 USD
View
Retailer 5
-
£436 GBP
$585 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£436 GBP
$585 USD
View
B
Retailer 7
-
£680 GBP
$913 USD
View
B
Retailer 8
-
£732 GBP
€935 EUR
View
B
Retailer 9
-
£1,172 GBP
$1,573 USD
View
B
Retailer 10
-
£1,402 GBP
$1,881 USD
View
Most Expensive
MOH London
LG436047188 · Oct 25
£1,604 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from £320 GBPSave up to £1,081 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
0.70ct Marquise
£320 GBP