Round|Natural|GIA

5.12ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1236842856

Certificate GIA 1236842856

Diamond specifications and retailer prices

From €98,093 EUR
SGD 148,095 SGD
As of November 1, 2026
Save €19,423 EUR (17%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €117,516 EUR at Jared · As of October 30, 2026
View at Jared

About this 5.12ct natural round diamond

This 5.12ct natural 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 GIA 1236842856. Listed at 4 retailers as of October 30, 2026, with prices from €98,093 to €117,516, a €19,423 spread on the same certified stone. Jared lists it at €117,516. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1236842856
Dimensions11.05 × 11.10 × 6.81 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
11.05 mm11.10 mm5.12 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236842856
Side View
Table 58.0%Crown 31.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 61.5%

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: €117,516 EUR|Low: €98,011 EUR|High: €125,396 EUR|Avg: €106,911 EUR
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4€98,093 EUR
Retailer 2€98,607 EUR
Retailer 6€101,718 EUR
Retailer 3€107,385 EUR
Jared€117,516 EUR
Retailer 5€125,396 EUR

27 data points across 6 retailers

4 retailers€98,093 EUR to €117,516 EUR

B+
Cheapest Retailer
-
€98,093 EUR
SGD 148,095 SGD
B+
Retailer 2
-
€98,607 EUR
£86,743 GBP
View
B+
Retailer 3
-
€107,385 EUR
$119,971 USD
View
Most Expensive
B
Jared
159894785 · Oct 30
€117,516 EUR
$131,290 USD
View
3 more retailers have this diamond
Prices start from €98,093 EURSave up to €19,423 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
€98,093 EUR