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Round|Lab Grown|IGI

12.70ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG604387570

Shape and cutting style on the report: Round brilliant

Certificate IGI LG604387570

Diamond specifications and retailer prices

From £4,592 GBP
$6,153 USD
As of October 29, 2026
Save £14,193 GBP (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £18,785 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.7ct lab-grown round diamond

This 12.7ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG604387570 or 604387570. Listed at 17 retailers as of October 29, 2026, with prices from £4,592 to £18,785, a £14,193 spread on the same certified stone. Brilliant Earth lists it at £18,785. 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

12.70
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604387570
Dimensions14.94 × 14.86 × 9.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.94 mm14.86 mm12.70 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604387570
Side View
Table 59.0%Crown 34.9°Girdle: MediumPavilion 41°Culet: NoneDepth 61.8%

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: Oct 29
Current: £18,785 GBP|Low: £4,592 GBP|High: £19,322 GBP|Avg: £8,175 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9£4,592 GBP
Retailer 10£5,094 GBP
Retailer 11£5,143 GBP
Retailer 4£5,253 GBP
Retailer 6£5,329 GBP
Retailer 7£6,334 GBP
Retailer 2£6,649 GBP
Retailer 8£8,221 GBP
Retailer 12£8,450 GBP
Retailer 3£8,518 GBP
Retailer 5£9,999 GBP
Brilliant Earth£18,785 GBP

39 data points across 12 retailers

17 retailers£4,592 GBP to £18,785 GBP

A
Cheapest Retailer
-
£4,592 GBP
$6,153 USD
A
Retailer 2
-
£4,813 GBP
$6,449 USD
View
B+
Retailer 3
-
£5,094 GBP
$6,825 USD
View
B+
Retailer 4
-
£5,143 GBP
$6,891 USD
View
Final sale: no returns
B+
Retailer 5
-
£5,327 GBP
$7,138 USD
View
Retailer 6
-
£5,327 GBP
$7,138 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
£5,329 GBP
$7,140 USD
View
B+
Retailer 8
-
£6,324 GBP
$8,473 USD
View
B+
Retailer 9
-
£6,334 GBP
$8,487 USD
View
B+
Retailer 10
-
£6,410 GBP
HK$67,100 HKD
View
B+
Retailer 11
-
£6,649 GBP
View
B
Retailer 12
-
£8,221 GBP
$11,015 USD
View
B
Retailer 13
-
£8,518 GBP
$11,413 USD
View
B
Retailer 14
-
£9,999 GBP
$13,397 USD
View
B
Retailer 15
-
£14,822 GBP
$19,860 USD
View
B
Retailer 16
-
£18,517 GBP
$24,810 USD
View
Most Expensive
B
Brilliant Earth
10597320A · Oct 31
£18,785 GBP
$25,170 USD
View
16 more retailers have this diamond
Prices start from £4,592 GBPSave up to £14,193 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
12.70ct Round
£4,592 GBP