CaratHunter
Plans
Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6405890761

Certificate GIA 6405890761

Diamond specifications and retailer prices

From ₹11,90,875 INR
$12,500 USD
As of October 25, 2026
Save ₹9,37,874 INR (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: ₹24,72,093 INR at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6405890761. Listed at 22 retailers as of October 25, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6405890761
Dimensions7.42 × 7.39 × 4.49 mm
L/W Ratio1.00
Top View
7.42 mm7.39 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6405890761
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.6%

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: Oct 25
Current: ₹14,16,934 INR|Low: ₹11,90,494 INR|High: ₹22,57,969 INR|Avg: ₹15,56,878 INR|-5.9%
Retailer 1
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
October 30, 2026
Retailer 14₹11,90,875 INR
Retailer 2₹12,39,558 INR
Retailer 7₹12,46,417 INR
Retailer 16₹12,68,969 INR
Retailer 13₹13,30,922 INR
Retailer 8₹13,69,030 INR
Retailer 1₹14,16,934 INR
Retailer 12₹14,56,903 INR
Retailer 5₹14,68,778 INR
Retailer 3₹15,36,705 INR
Retailer 15₹15,36,705 INR
Retailer 4₹15,73,670 INR
Retailer 6₹15,88,151 INR
Retailer 9₹16,45,151 INR
Retailer 11₹19,81,292 INR
Retailer 10₹21,28,749 INR

42 data points across 16 retailers

22 retailers₹11,90,875 INR to ₹21,28,749 INR

B+
Cheapest Retailer
-
₹11,90,875 INR
$12,500 USD
B
Retailer 2
-
₹12,39,558 INR
$13,011 USD
View
B
Retailer 3
-
₹12,46,417 INR
$13,083 USD
View
B
Retailer 4
-
₹12,68,969 INR
CA$18,500 CAD
View
B
Retailer 5
-
₹12,78,900 INR
A$20,652 AUD
View
B
Retailer 6
-
₹13,30,922 INR
$13,970 USD
View
B
Retailer 7
-
₹13,55,787 INR
$14,231 USD
View
B
Retailer 8
-
₹13,69,030 INR
$14,370 USD
View
Final sale: no returns
B
Retailer 9
-
₹14,16,934 INR
£11,711 GBP
View
B
Retailer 10
-
₹14,46,199 INR
$15,180 USD
View
B
Retailer 11
-
₹14,56,903 INR
A$23,527 AUD
View
B
Retailer 12
-
₹14,68,778 INR
$15,417 USD
View
B
Retailer 13
-
₹15,25,273 INR
$16,010 USD
View
B
Retailer 14
-
₹15,36,705 INR
$16,130 USD
View
B
Retailer 15
-
₹15,36,705 INR
$16,130 USD
View
B
Retailer 16
-
₹15,73,670 INR
$16,518 USD
View
B
Retailer 17
-
₹15,88,151 INR
$16,670 USD
View
B
Retailer 18
-
₹16,45,151 INR
€16,446 EUR
View
B
Retailer 19
-
₹19,20,738 INR
$20,161 USD
View
B
Retailer 20
-
₹19,81,292 INR
ZAR 335,971 ZAR
View
B
Retailer 21
-
₹21,28,749 INR
£17,594 GBP
View
Most Expensive
Diamond Quarter
1.51SI1E646109B5N · Oct 29
₹24,72,093 INR
£20,432 GBP
View
Price under review
21 more retailers have this diamond
Prices start from ₹11,90,875 INRSave up to ₹9,37,874 INR

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+
1.51ct Round
₹11,90,875 INR