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Marquise|Lab Grown|IGI

0.51ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG844673312

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844673312

Diamond specifications and retailer prices

From £210 GBP
$282 USD
As of October 30, 2026
Save £179 GBP (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £390 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844673312 or 844673312. Listed at 8 retailers as of October 30, 2026, with prices from £210 to £390, a £179 spread on the same certified stone. Taylor and Hart lists it at £390. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle30.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844673312
Dimensions7.99 × 4.10 × 2.59 mm
L/W Ratio1.95
Girdle conditionFaceted
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
7.99 mm4.10 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG844673312
Side View
Table 58.0%Crown 30.9°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £220 GBP|Low: £197 GBP|High: £390 GBP|Avg: £275 GBP|+5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 31, 2026
Retailer 6£197 GBP
Retailer 5£210 GBP
Retailer 1£220 GBP
Retailer 2£224 GBP
Retailer 3£260 GBP
Retailer 7£323 GBP
Retailer 4£334 GBP
Taylor and Hart£390 GBP

8 data points across 8 retailers

8 retailers£210 GBP to £390 GBP

Retailer 1
-
£197 GBP
€252 EUR
Price last confirmed 8 days ago
B+
Retailer 2
-
£210 GBP
$282 USD
View
B+
Retailer 3
-
£220 GBP
View
B+
Retailer 4
-
£224 GBP
$300 USD
View
B+
Retailer 5
-
£260 GBP
View
B
Retailer 6
-
£323 GBP
$433 USD
View
B
Retailer 7
-
£334 GBP
$448 USD
View
Most Expensive
B
Taylor and Hart
91X30W2 · Oct 31
£390 GBP
$522 USD
View
7 more retailers have this diamond
Prices start from £210 GBPSave up to £179 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.

B+
0.51ct Marquise
£210 GBP