CaratHunter
Plans
Radiant|Natural|GIA

2.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1567577300

Certificate GIA 1567577300

Diamond specifications and retailer prices

From €16,636 EUR
HK$145,200 HKD
As of November 1, 2026
Save €13,779 EUR (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €30,415 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567577300. Listed at 13 retailers as of November 1, 2026, with prices from €16,636 to €30,415, a €13,779 spread on the same certified stone. MOH London lists it at €30,415. 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

2.51
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1567577300
Dimensions8.84 × 6.77 × 4.66 mm
L/W Ratio1.31
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal
Top View
8.84 mm6.77 mm2.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567577300
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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: Nov 1
Current: €30,415 EUR|Low: €16,636 EUR|High: €30,579 EUR|Avg: €21,797 EUR|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 12€16,636 EUR
Retailer 5€17,070 EUR
Retailer 4€19,804 EUR
Retailer 2€20,601 EUR
Retailer 3€20,941 EUR
Retailer 6€22,408 EUR
Retailer 11€22,491 EUR
Retailer 9€22,571 EUR
Retailer 10€23,288 EUR
Retailer 7€24,184 EUR
Retailer 8€27,590 EUR
MOH London€30,415 EUR

12 data points across 12 retailers

13 retailers€16,636 EUR to €30,415 EUR

A
Cheapest Retailer
-
€16,636 EUR
HK$145,200 HKD
A
Retailer 2
-
€17,070 EUR
₹1,816,230 INR
View
B+
Retailer 3
-
€18,453 EUR
A$31,717 AUD
View
B+
Retailer 4
-
€19,804 EUR
$22,125 USD
View
B+
Retailer 5
-
€20,601 EUR
$23,016 USD
View
Final sale: no returns
B+
Retailer 6
-
€20,941 EUR
$23,395 USD
View
B+
Retailer 7
-
€22,408 EUR
£19,712 GBP
View
B
Retailer 8
-
€22,491 EUR
$25,127 USD
View
B+
Retailer 9
-
€22,571 EUR
$25,217 USD
View
B
Retailer 10
-
€23,288 EUR
$26,018 USD
View
B
Retailer 11
-
€24,184 EUR
$27,019 USD
View
B
Retailer 12
-
€27,590 EUR
$30,824 USD
View
Most Expensive
B
MOH London
ECDD29573 · Nov 1
€30,415 EUR
£26,756 GBP
View
12 more retailers have this diamond
Prices start from €16,636 EURSave up to €13,779 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.

A
2.51ct Radiant
€16,636 EUR