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Round|Lab Grown|IGI

1.27ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG816608237

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816608237

Diamond specifications and retailer prices

From £145 GBP
As of November 5, 2026
Save £730 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,585 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816608237 or 816608237. Listed at 22 retailers as of November 4, 2026, with a 504% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608237
Dimensions6.99 × 7.02 × 4.21 mm
L/W Ratio1.00
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
6.99 mm7.02 mm1.27 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608237
Side View
Table 57.0%Crown 33.5°Girdle: MediumPavilion 40.3°Culet: NoneDepth 60.1%

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 5
Current: £1,585 GBP|Low: £145 GBP|High: £1,585 GBP|Avg: £465 GBP
Queensmith
Retailer 2
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Retailer 4
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Retailer 22
November 5, 2026
Retailer 5£145 GBP
Retailer 9£162 GBP
Retailer 22£168 GBP
Retailer 20£180 GBP
Retailer 8£199 GBP
Retailer 11£241 GBP
Retailer 6£302 GBP
Retailer 13£304 GBP
Retailer 18£310 GBP
Retailer 4£317 GBP
Retailer 2£323 GBP
Retailer 7£363 GBP
Retailer 12£397 GBP
Retailer 17£437 GBP
Retailer 16£467 GBP
Retailer 21£577 GBP
Retailer 14£583 GBP
Retailer 15£606 GBP
Retailer 10£617 GBP
Retailer 19£839 GBP
Retailer 3£874 GBP
Queensmith£1,585 GBP

9 data points across 22 retailers

22 retailers£145 GBP to £874 GBP

A
Cheapest Retailer
-
£145 GBP
A
Retailer 2
-
£162 GBP
View
Final sale: no returns
A
Retailer 3
-
£168 GBP
View
A
Retailer 4
-
£180 GBP
View
A
Retailer 5
-
£199 GBP
View
B+
Retailer 6
-
£241 GBP
View
Retailer 7
-
£302 GBP
View
Price last confirmed 7 days ago
A
Retailer 8
-
£304 GBP
View
A
Retailer 9
-
£310 GBP
View
A
Retailer 10
-
£317 GBP
View
A
Retailer 11
-
£323 GBP
View
B+
Retailer 12
-
£363 GBP
View
Retailer 13
-
£397 GBP
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£437 GBP
View
B+
Retailer 15
-
£467 GBP
View
B
Retailer 16
-
£577 GBP
View
B
Retailer 17
-
£583 GBP
View
B
Retailer 18
-
£606 GBP
View
B
Retailer 19
-
£617 GBP
View
B
Retailer 20
-
£839 GBP
View
B
Retailer 21
-
£874 GBP
View
Most Expensive
Queensmith
LG816608237 · Oct 28
£1,585 GBP
View
Price under review
21 more retailers have this diamond
Prices start from £145 GBPSave up to £730 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
1.27ct Round
£145 GBP