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Oval|Lab Grown|GIA

0.51ct G SI1 Oval Lab Grown Diamond

GD • G/SI1 • GIA 6485252119

Certificate GIA 6485252119

Diamond specifications and retailer prices

From £71 GBP
$95 USD
As of October 30, 2026
Save £638 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £709 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6485252119. Listed at 9 retailers as of October 30, 2026, with prices from £71 to £709, a £638 spread on the same certified stone. Do Amore Diamonds lists it at £709. 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

0.51
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6485252119
Dimensions7.39 × 4.45 × 2.69 mm
L/W Ratio1.66
Culet sizeNone
Top View
7.39 mm4.45 mm0.51 ctG / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6485252119
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 60.4%

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 30
Current: £709 GBP|Low: £71 GBP|High: £899 GBP|Avg: £289 GBP|-18.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9£71 GBP
Retailer 3£100 GBP
Retailer 11£102 GBP
Retailer 2£150 GBP
Retailer 5£153 GBP
Retailer 7£169 GBP
Retailer 8£253 GBP
Retailer 6£282 GBP
Retailer 10£411 GBP
Retailer 4£639 GBP
Do Amore Diamonds£709 GBP

33 data points across 11 retailers

9 retailers£71 GBP to £709 GBP

A
Cheapest Retailer
-
£71 GBP
$95 USD
Final sale: no returns
B+
Retailer 2
-
£150 GBP
View
A
Retailer 3
-
£153 GBP
$205 USD
View
A
Retailer 4
-
£169 GBP
$226 USD
View
B+
Retailer 5
-
£253 GBP
$339 USD
View
B+
Retailer 6
-
£282 GBP
$378 USD
View
B
Retailer 7
-
£411 GBP
$551 USD
View
B
Retailer 8
-
£639 GBP
View
Most Expensive
B
Do Amore Diamonds
27-832920B8B · Oct 31
£709 GBP
$950 USD
View
8 more retailers have this diamond
Prices start from £71 GBPSave up to £638 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
0.51ct Oval
£71 GBP