Round|Natural|GIA

6.19ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1236624386

Certificate GIA 1236624386

Diamond specifications and retailer prices

From $162,850 USD
As of October 26, 2026
Save $13,418 USD (8%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $278,595 USD at MOH London · As of October 21, 2026
View at MOH London

About this 6.19ct natural round diamond

This 6.19ct natural round sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236624386. Listed at 10 retailers as of October 26, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

6.19
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1236624386
Dimensions11.70 × 11.61 × 7.23 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
11.70 mm11.61 mm6.19 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236624386
Side View
Table 59.0%Crown 36°GirdlePavilion 40.6°Culet: 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: Oct 26
Current: $278,595 USD|Low: $137,550 USD|High: $280,450 USD|Avg: $197,404 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 21, 2026
Retailer 4$137,550 USD
Retailer 11$162,850 USD
Retailer 8$176,268 USD
Retailer 5$176,731 USD
Retailer 2$186,199 USD
Retailer 9$188,950 USD
Retailer 10$195,854 USD
Retailer 6$200,046 USD
Retailer 12$205,363 USD
Retailer 7$211,668 USD
Retailer 3$244,650 USD
MOH London$278,595 USD

17 data points across 12 retailers

10 retailers$162,850 USD to $176,268 USD

B+
Cheapest Retailer
-
$162,850 USD
B+
Retailer 2
-
$176,268 USD
View
Final sale: no returns
Retailer 3
-
$176,731 USD
£139,159 GBP
View
Price last confirmed 10 days ago
Retailer 4
-
$184,828 USD
View
Price last confirmed 41 days ago
Retailer 5
-
$186,199 USD
£146,614 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
$188,950 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$211,668 USD
ZAR 3,419,523 ZAR
View
Price last confirmed 13 days ago
Retailer 8
-
$212,175 USD
View
Price last confirmed 38 days ago
Retailer 9
-
$220,336 USD
View
Price last confirmed 38 days ago
Most Expensive
MOH London
717D79F15 · Oct 21
$278,595 USD
£219,366 GBP
View
Price last confirmed 9 days ago
9 more retailers have this diamond
Prices start from $162,850 USDSave up to $13,418 USD

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+
6.19ct Round
$162,850 USD