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Round|Lab Grown|GIA

12.55ct F VS2 Round Lab Grown Diamond

EX • F/VS2 • GIA 6465165596

Certificate GIA 6465165596

Diamond specifications and retailer prices

From £6,291 GBP
$8,429 USD
As of November 1, 2026
Save £12,890 GBP (67%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £19,181 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.55ct lab-grown round diamond

This 12.55ct 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 GIA 6465165596. Listed at 13 retailers as of October 31, 2026, with prices from £6,291 to £19,181, a £12,890 spread on the same certified stone. Brilliant Earth lists it at £19,181. 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

12.55
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 6465165596
Dimensions15.03 × 14.94 × 9.20 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
15.03 mm14.94 mm12.55 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6465165596
Side View
Table 56.0%Crown 34.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 61.4%

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: Nov 1
Current: £19,181 GBP|Low: £6,097 GBP|High: £39,630 GBP|Avg: £12,807 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 15£6,291 GBP
Retailer 3£6,542 GBP
Retailer 4£6,963 GBP
Retailer 7£7,073 GBP
Retailer 5£7,114 GBP
Retailer 16£7,842 GBP
Retailer 11£7,844 GBP
Retailer 10£8,117 GBP
Retailer 12£8,368 GBP
Retailer 13£8,443 GBP
Retailer 17£9,059 GBP
Retailer 2£12,620 GBP
Retailer 6£12,859 GBP
Retailer 9£19,094 GBP
Brilliant Earth£19,181 GBP
Retailer 8£26,038 GBP
Retailer 14£39,257 GBP

19 data points across 17 retailers

13 retailers£6,291 GBP to £19,181 GBP

B+
Cheapest Retailer
-
£6,291 GBP
$8,429 USD
B+
Retailer 2
-
£6,542 GBP
$8,766 USD
View
Retailer 3
-
£6,911 GBP
$9,260 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
£7,114 GBP
$9,532 USD
View
Final sale: no returns
B
Retailer 5
-
£7,842 GBP
$10,508 USD
View
B+
Retailer 6
-
£7,844 GBP
$10,510 USD
View
B+
Retailer 7
-
£8,117 GBP
$10,876 USD
View
B
Retailer 8
-
£8,368 GBP
HK$87,600 HKD
View
B
Retailer 9
-
£8,443 GBP
$11,313 USD
View
B
Retailer 10
-
£9,059 GBP
$12,138 USD
View
B
Retailer 11
-
£12,620 GBP
A$26,015 AUD
View
Most Expensive
B
Brilliant Earth
15271263Y · Oct 31
£19,181 GBP
$25,700 USD
View
11 more retailers have this diamond
Prices start from £6,291 GBPSave up to £12,890 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+
12.55ct Round
£6,291 GBP