CaratHunter
Plans
Round|Lab Grown|IGI

5.12ct G SI1 Round Lab Grown Diamond

ID • G/SI1

Diamond specifications and retailer prices

From €942 EUR
£832 GBP
As of November 2, 2026
Save €1,461 EUR (61%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €2,403 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 5.12ct lab-grown round diamond

This 5.12ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 3 retailers as of November 1, 2026, with prices from €942 to €2,403, a €1,461 spread on the same certified stone. Rare Carat lists it at €2,403. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.12
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions10.97 × 11.04 × 6.82 mm
L/W Ratio1.01
Top View
10.97 mm11.04 mm5.12 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 57.0%CrownGirdle: Med.PavilionCulet: NoneDepth 62.0%

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 2
Current: €2,403 EUR|Low: €652 EUR|High: €2,712 EUR|Avg: €1,550 EUR|-11.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4€652 EUR
Retailer 2€942 EUR
Retailer 3€2,149 EUR
Rare Carat€2,403 EUR

41 data points across 4 retailers

3 retailers€942 EUR to €2,403 EUR

B+
Cheapest Retailer
-
€942 EUR
£832 GBP
B
Retailer 2
-
€2,149 EUR
CA$3,347 CAD
View
Most Expensive
B
Rare Carat
138509 · Nov 1
€2,403 EUR
$2,695 USD
View
2 more retailers have this diamond
Prices start from €942 EURSave up to €1,461 EUR

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+
5.12ct Round
€942 EUR