CaratHunter
Plans
Marquise|Lab Grown|IGI

3.89ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG837608560

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837608560

Diamond specifications and retailer prices

From £346 GBP
$464 USD
As of November 2, 2026
Save £2,367 GBP (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,712 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.89ct lab-grown marquise diamond

This 3.89ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837608560 or 837608560. Listed at 13 retailers as of November 2, 2026, with prices from £346 to £2,712, a £2,367 spread on the same certified stone. Brilliant Earth lists it at £2,712. 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

3.89
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837608560
Dimensions15.42 × 8.17 × 5.25 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.42 mm8.17 mm3.89 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837608560
Side View
Table 61.0%Crown 37.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 64.3%

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: £2,712 GBP|Low: £346 GBP|High: £3,048 GBP|Avg: £1,234 GBP|-11.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 13£346 GBP
Retailer 9£387 GBP
Retailer 2£477 GBP
Retailer 8£653 GBP
Retailer 5£731 GBP
Retailer 7£906 GBP
Retailer 11£1,153 GBP
Retailer 10£1,155 GBP
Retailer 4£1,379 GBP
Retailer 3£1,501 GBP
Retailer 6£1,575 GBP
Retailer 12£1,936 GBP
Brilliant Earth£2,712 GBP

37 data points across 13 retailers

13 retailers£346 GBP to £2,712 GBP

A
Cheapest Retailer
-
£346 GBP
$464 USD
A
Retailer 2
-
£387 GBP
$520 USD
View
A
Retailer 3
-
£477 GBP
View
Retailer 4
-
£653 GBP
€834 EUR
View
Price last confirmed 8 days ago
A
Retailer 5
-
£731 GBP
$981 USD
View
A
Retailer 6
-
£906 GBP
A$1,870 AUD
View
A
Retailer 7
-
£1,153 GBP
$1,547 USD
View
B+
Retailer 8
-
£1,155 GBP
$1,550 USD
View
B+
Retailer 9
-
£1,379 GBP
$1,850 USD
View
B+
Retailer 10
-
£1,501 GBP
$2,014 USD
View
B+
Retailer 11
-
£1,575 GBP
View
B+
Retailer 12
-
£1,936 GBP
$2,598 USD
View
Most Expensive
B
Brilliant Earth
21361186A · Nov 2
£2,712 GBP
$3,640 USD
View
12 more retailers have this diamond
Prices start from £346 GBPSave up to £2,367 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
3.89ct Marquise
£346 GBP