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Marquise|Lab Grown|IGI

1.00ct D SI1 Marquise Lab Grown Diamond

VG • D/SI1 • IGI LG836689242

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836689242

Diamond specifications and retailer prices

From £111 GBP
$149 USD
As of October 30, 2026
Save £658 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £769 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG836689242 or 836689242. Listed at 17 retailers as of October 30, 2026, with prices from £111 to £769, a £658 spread on the same certified stone. Reve Diamonds lists it at £769. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836689242
Dimensions10.45 × 5.43 × 3.14 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.45 mm5.43 mm1.00 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836689242
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £644 GBP|Low: £111 GBP|High: £794 GBP|Avg: £318 GBP|-7.2%
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
Reve Diamonds
November 1, 2026
Retailer 8£111 GBP
Retailer 2£125 GBP
Retailer 5£129 GBP
Retailer 3£138 GBP
Retailer 14£138 GBP
Retailer 9£165 GBP
Retailer 15£187 GBP
Retailer 6£236 GBP
Retailer 10£239 GBP
Retailer 12£250 GBP
Retailer 11£262 GBP
Retailer 4£319 GBP
Retailer 16£443 GBP
Retailer 13£468 GBP
Retailer 7£484 GBP
Retailer 1£644 GBP
Reve Diamonds£769 GBP

15 data points across 17 retailers

17 retailers£111 GBP to £769 GBP

A
Cheapest Retailer
-
£111 GBP
$149 USD
A
Retailer 2
-
£125 GBP
$167 USD
View
Final sale: no returns
A
Retailer 3
-
£129 GBP
$173 USD
View
Retailer 4
-
£138 GBP
$185 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£138 GBP
$185 USD
View
A
Retailer 6
-
£165 GBP
View
B+
Retailer 7
-
£187 GBP
$250 USD
View
B+
Retailer 8
-
£236 GBP
$316 USD
View
A
Retailer 9
-
£239 GBP
View
A
Retailer 10
-
£250 GBP
€319 EUR
View
B+
Retailer 11
-
£262 GBP
View
B+
Retailer 12
-
£319 GBP
$428 USD
View
B
Retailer 13
-
£443 GBP
$593 USD
View
B
Retailer 14
-
£468 GBP
$627 USD
View
B
Retailer 15
-
£484 GBP
$649 USD
View
B
Retailer 16
-
£644 GBP
View
Most Expensive
B
Reve Diamonds
D1DFEDA27 · Nov 1
£769 GBP
$1,030 USD
View
16 more retailers have this diamond
Prices start from £111 GBPSave up to £658 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
1.00ct Marquise
£111 GBP